Answer:
28/5 divided by 8/3 = 28/5 multiplied by 3/8 = 84/40 = 2 4/40 = 2 1/10
some data mining algorithms require that variables are standardized (sometimes called normalized) to zero mean and standard deviation of 1.0. what is the reason for this?
The reason why some data mining algorithms require that variables are standardized to zero mean and standard deviation of 1.0 is because it helps to normalize the data and make it more comparable across different variables.
Standardizing the data helps to remove the impact of the scale of the variables on the analysis, allowing for more accurate comparisons and correlations between variables. By doing this, it ensures that no one variable has an undue influence on the results of the analysis. Standard deviation is a statistical measure that is used to measure the amount of variability or dispersion in a dataset. When data is standardized, it allows for a more accurate assessment of the relationship between variables and can improve the accuracy of the analysis. Overall, standardizing variables is a crucial step in the data mining process, as it helps to ensure that the results of the analysis are reliable and accurate.
The reason some data mining algorithms require variables to be standardized (or normalized) to a zero mean and a standard deviation of 1.0 is to ensure consistent and comparable scales for all variables involved. Standardizing variables helps in improving the performance and accuracy of the algorithms.
When variables have different scales or units, it can be challenging for algorithms to interpret their relative importance accurately. By transforming variables to have a zero mean and a standard deviation of 1.0, the algorithms can more effectively process and analyze the data. This standardization process is particularly important for distance-based and gradient-based algorithms, where scale differences can significantly impact the results.
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Give examples of two-person, non-zero sum games with: A single unique Nash equilibrium in pure strategy Multiple Nash equilibria in pure strategy
Two-person, non-zero sum games can have a single unique Nash equilibrium in pure strategy, such as the Prisoner's Dilemma, or multiple Nash equilibria in pure strategy, like the Battle of the Sexes.
Example of a two-person, non-zero sum game with a single unique Nash equilibrium in pure strategy:
Prisoner's Dilemma:
Player 1 options: Cooperate (C) or Defect (D)
Player 2 options: Cooperate (C) or Defect (D)
| Player 2 Cooperate | Player 2 Defect |
----------------------------------------------
Player 1 | (-1, -1) | (-3, 0) |
----------------------------------------------
Player 2 | (0, -3) | (-2, -2) |
In this game, both players have a dominant strategy to defect (D) regardless of the other player's action. The Nash equilibrium is (D, D) since neither player can unilaterally deviate to improve their payoff.
Example of a two-person, non-zero sum game with multiple Nash equilibria in pure strategy:
Battle of the Sexes:
Player 1 options: Opera (O) or Football (F)
Player 2 options: Opera (O) or Football (F)
| Player 2 Opera | Player 2 Football |
----------------------------------------------
Player 1 | (2, 1) | (0, 0) |
----------------------------------------------
Player 2 | (0, 0) | (1, 2) |
In this game, there are two pure strategy Nash equilibria: (O, O) and (F, F). Each player prefers a different outcome, but both players agree on their preferred action at each Nash equilibrium.
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-7b - 3 equals -3b + 5
Answer:
b= -8/5
Step-by-step explanation:
-5-3=7b-3b
-8=5b
b= -8/5
What is the sum of 2 3/5 and 3/7
Find the common denominator (Lower number on a fraction)
Simplest way is 5x7. 5x7=35
Make it imporper: 13/5 and 3/7
Common denominator: 91/35 and 15/35
106/35.
Mixed form: 3 1/35
Brainliest and a heart would be the best, thank you.
Answer:
106/35 or 3 and 1/35 (depending on if the answer should be a mixed number or improper fraction)
Step-by-step explanation:
2 3/5 + 3/7
to add, you first convert to improper fractions by multiplying the denominator by the whole number and adding that product to the numerator
5*2=10 and 10+3=13 so the first fraction is now 13/5
the problem is now 13/5+3/7
when adding fractions the denominator needs to be the same. To find the least common multiple (or LCM) or a number you take the number's prime factorization and multiply together the largest number of each prime together. However, since these numbers are prime this is unnecessary and we can just multiply them. When multiplying to change the denominator or numerator you must always multiply the opposite side by the same number. This is because a number over the same number equals one and thus you are altering the form without altering the intrinsic numerical value associated with it. For example, you would multiply 13/5 * 7/7 and get 91/35
Next we would multiply 3/7 * 5/5 because 5 is the number that would make the denominator of this fraction also equal 35 and get 15/35
We now have the equation 91/35 + 15/35
When adding the denominator stays the same and you add the numerators which would produce 106/35
We can convert this to a mixed number by seeing how many times 35 can go into 106 completely.
35 goes into 106 3 times with a leftover of 1 so the mixed version would be 3 and 1/35
the stony brook ams major has also been ranked for several years as one of the top five u.s. undergraduate programs in applied mathematics by college factual, as cited in usa today. the 2020 ranking is:
The Stony Brook University has been ranked as the third best university to pursue a degree in applied mathematic among all the other public and private universities.
Stony Brook University—SUNY is placed #77 in the Best Colleges rating for 2022–2023's National Universities category.
The tuition fees is $10,556 and $28,476 for in-state and out-of-state respectively. The Stony Brook University comes under the state University of New York along with the other 64 universities.
The Stony Brook AMS major has reportedly been listed by College Factual as one of the top five undergraduate applied mathematics degrees in the US for a number of years, according to USA Today. The top five schools for 2020 are CalTech, Stanford, Harvard, Brown, and Stony Brook.
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help. pls. will give brainlist if u help
On its municipal website, the city of Tulsa states that the rate it charges per 5 CCF of residential water is $21.62. How do the residential water rates of other U.S. public utilities compare to Tulsa's rate? The data shown below ($) contains the rate per 5 CCF of residential water for 42 randomly selected U.S. cities.10.38 9.08 11.7 6.4 12.32 14.43 15.4610.02 14.4 16.08 17.5 19.08 17.88 12.7516.7 17.25 15.54 14.7 18.81 17.89 14.818.32 15.95 26.75 22.22 22.66 20.88 23.3518.95 23.6 19.16 23.65 27.7 26.95 27.0426.89 24.58 37.76 26.41 38.91 29.36 41.55(a)Formulate hypotheses that can be used to determine whether the population mean rate per 5 CCF of residential water charged by U.S. public utilities differs from the $21.62 rate charged by Tulsa. (Enter != for ≠ as needed.)H0:Ha:(b)What is the test statistic for your hypothesis test in part (a)? (Round your answer to three decimal places.)What is the p-value for your hypothesis test in part (a)? (Round your answer to four decimal places.)(c)At α = 0.05, can your null hypothesis be rejected? What is your conclusion?Do not reject H0. The mean rate per 5 CCF of residential water throughout the United States differs significantly from the rate per 5 CCF of residential water in Tulsa.Reject H0. The mean rate per 5 CCF of residential water throughout the United States does not differ significantly from the rate per 5 CCF of residential water in Tulsa.Do not reject H0. The mean rate per 5 CCF of residential water throughout the United States does not differ significantly from the rate per 5 CCF of residential water in Tulsa.Reject H0. The mean rate per 5 CCF of residential water throughout the United States differs significantly from the rate per 5 CCF of residential water in Tulsa.(d)Repeat the preceding hypothesis test using the critical value approach.State the null and alternative hypotheses. (Enter != for ≠ as needed.)H0:Ha:Find the value of the test statistic. (Round your answer to three decimal places.)State the critical values for the rejection rule. Useα = 0.05.(Round your answers to three decimal places. If the test is one-tailed, enter NONE for the unused tail.)test statistic≤test statistic≥State your conclusion.Do not reject H0. The mean rate per 5 CCF of residential water throughout the United States differs significantly from the rate per 5 CCF of residential water in Tulsa.Reject H0. The mean rate per 5 CCF of residential water throughout the United States does not differ significantly from the rate per 5 CCF of residential water in Tulsa.Do not reject H0. The mean rate per 5 CCF of residential water throughout the United States does not differ significantly from the rate per 5 CCF of residential water in Tulsa.Reject H0. The mean rate per 5 CCF of residential water throughout the United States differs significantly from the rate per 5 CCF of residential water in Tulsa.
The null hypothesis for the data will be 21.62 and the alternate hypothesis is 2.02 for the p-value for the data is 0.2253 .
The charge at which anything happens is referred to as the velocity at which it happens.
The required details for mean rate :
(a) H0: µ = 21.62
Ha: µ ≠ 21.62
(b) t = -1.231
p-value = 0.2253
(c) Stop rejecting H0 right now. No longer significantly different from the domestic water tariff in Tulsa, the suggested household water charge per five CCF for the entire USA.
(d) H0: µ = 21.62
Ha: µ ≠ 21.62
t = -1.231
check statistic ≥ 2.020
Don't dismiss H0 any longer. The suggested five CCF residential water charge for the entirety of the USA is no longer significantly different from the five CCF residential water tariff in Tulsa.
The P-value is higher at 0.05, the level of significance. The impact in this instance is negligible. The attempt to reject the null hypothesis failed.
The conclusion is that there is insufficient statistical support to determine whether other American cities have a different mortality rate than Tulsa.
The crucial values for t at this level of significance are t=2.019.
Given that the statistic t = -1.15 is inside the acceptance range in this case, the null hypothesis is not disproved.
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3c + bc - 2a if a=6,b=4, and c=10
Answer:58
Step-by-step explanation:
A large green jar of candy contains red, green, and yellow candy. The probability of pulling a red candy out of the jar is 1/4. The probability of pulling a green candy out of the jar is 5/8. What is the probobility of randomly pulling a yellow candy out of the jar
Answer:
1/8
Step-by-step explanation:
total probability = 1
total probability = probability of red + probability of green + probability of yellow
1 = 1/4 + 5/8 + yellow
we want to find a common denominator
in this case, we know 4 * 2 = 8, so we can multiply 1/4 by 2/2 = 1 to get
1/4 * 2/2 = 2/8
1 = 2/8 + 5/8 + yellow
1 = 7/8 + yellow
subtract 7/8 from both sides to isolate yellow
1 = 8/8
1 - 7/8 = 8/8 - 7/8 = 1/8 = yellow
During the summer, jody earns $10 per hour babysitting and $15 per hour doing yardwork. this week she worked 34 hours and earned $410. if x represents the number hours she babysat and y represents the number of hours she did yardwork, which system of equations models this situation? a. x y = 34 10x 15y = 410 b. x y = 410 10x 15y = 34 c. x y = 34 15x 10y = 410 d. x y = 410 15x 10y = 34
The option A is correct, the linear equation x + y = 34. and 10x + 15y = 410 represent the the statement.
According to the statement
we have given that the
Jody earns $10 per hour babysitting And jody earns $15 per hour doing yardwork.
And she worked 34 hours and earned $410
and we have to express in the linear equation terms.
So, For this purpose,
Let x represents the number hours she babysat
Let y represents the number of hours she did yardwork
And the equations become
x + y = 34.
10x + 15y = 410
And with the help of these linear equations we find the hours which are x and y.
So, The above written equations perfectly express the given conditions in the statement.
The option A is correct, the linear equation x + y = 34. and 10x + 15y = 410 represent the the statement.
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(-6) over 5 x (-6) over 8
Answer:
(-6 ÷ 5) × (-6 ÷ 8) = 9/10 or 0.9
Step-by-step explanation:
heeeeeeeeeeeeeeeeeeeeeeeeeeelllllllllllllllllllpppppppppppppppppp
Answer:
x = 5Step-by-step explanation:
\(6 - 2x = 5x - 9x + 16\)
Simplify
That's
\(6 - 2x = - 4x + 16\)
Add 4x to both sides of the equation
\(6 - 2x + 4x = 4x - 4x + 16 \\ 6 + 2x = 16\)
Subtract 6 from both sides of the equation
\(6 - 6 + 2x = 16 - 6 \\ 2x = 10\)
Divide both sides by 2
\( \frac{2x}{2} = \frac{10}{2} \\ \)
We have the final answer as
x = 5Hope this helps you
A height is labeled on the triangle below.
Which line segment shows the base that corresponds to the given height of the triangle?
B
height
А
Choose 1 answer:
(A)
А
(В)
B
С
С
Answer: Option A. Line segment A
Step-by-step explanation: we know that
The height of the triangle must be perpendicular to the base of the triangle
so
In this problem
The segment A is perpendicular to the given height
therefore
The base is the line segment A
can you help me do this Q please :)
Answer:
i didnt get it
Step-by-step explanation:
can you explain
-2=3x+14+x;
Решите пожалуйста прямо сейчас уравнение
10у+6=12у-8;
11z-3=-3-12z.
Answer:
для всех этих?
Step-by-step explanation:
-2=3x+14+x=
x=-4
10у+6=12у-8=
я не знаю этого извините
11z-3=-3-12z
z=0
a candy bar box is in the shape of a triangular prism. the volume of the box is 1,200 cubic centimeters. a triangular prism is shown with base of triangle labeled 10 cm, sides of the triangles labeled 13 cm, and length of the box equal to 20 cm. part a: what is the height of the base? show your work.
The height of the box is 12cm, having volume = 1200cm ³ .
What is the volume of triangular prism?A triangular prism's volume is the area that it takes up in all three dimensions. A prism is a solid object that has the same cross-section throughout its entire length, equal bases, and flat, rectangular side faces. Prisms can be divided into many categories and given different names depending on the form of their bases. A triangular prism has three rectangular lateral sides and two identical triangular bases.
The formula yields the volume of a triangular prism.
Volume of triangular prism = 1/2lwh
Where,
w = width
h = height
l = length.
We may determine the height by filling in the specified measurements.
1200cm ³ = 1/2 × (20 cm) × (10 cm) × h
h = (1200 cm³) / (100 cm²))
h = 12 cm
The box has a 12 centimeter height.
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For f differentiable such that f(1) = 3 and f'(1) = 4, the tangent line approximation of (0.987)=2.37. If this is an overestimate, what conclusion can be made about ??a. f opens down on the interval 0.987
The correct conclusion is:
a. f opens down on the interval 0.987 < x < 1
To determine the conclusion about the behavior of the function f, we can use the tangent line approximation and whether it overestimates or underestimates the actual value of f(0.987).
Given that the tangent line approximation at x = 1 is 2.37, and if this approximation is an overestimate of the actual value of f(0.987), it means that the function lies below the tangent line in the interval 0.987 < x < 1.
Since the tangent line has a positive slope (given that f'(1) = 4), if the function f lies below the tangent line, it must be decreasing in the interval 0.987 < x < 1.
Therefore, the correct conclusion is:
a. f opens down on the interval 0.987 < x < 1
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Complete question =
For f differentiable such that f(1) = 3 and f'(1) = 4, the tangent line approximation of (0.987) = 2.37.
If this is an overestimate, what conclusion can be made about f ??
a. f opens down on the interval 0.987 x < x < 1
b. f opens up on the interval 0.987 x < x < 1
c. f opens down at x = 0.987
d. f opens up at x = 1
can someone PLEASE HELP ME?? i have to redo some answers on my test and i have no clue what to do!
i would really appreciate your help!
A robin was sitting 9 feet from the base of a tree. The robin flew 41 feet to the top of the tree. The tree is ___ feet tall.
Hint: Draw and label a diagram.
Answer:
41 ft
Step-by-step explanation:
Since that's the height the Robin flew to.
Answer:
its either 41 feet or 50 feet or neither cause im dum.b
Step-by-step explanation:
41 feet explanation = the bird was on the ground and was 9 feet away from the tree so the bird moved 9 feet ON THE GROUND and then flew up 41 feet
50 feet explanation = the bird was on a branch 9 feet up from the tree base and flew the rest of the 41 feet
Rachel bought a sheet of fifty 34-cent stamps from the post office. she paid for the stamps with a $20 bill. how much money should she get back?
What is 183 divided by 13
Answer:
14.077 appr. 14.1
Step-by-step explanation:
183/13=
18÷13=1 remainder 5
53÷13=4 remainder 1
therefore the answer is 14.1
PLEASE MARK BRAINLEST
What value of X will make 3 cubed the square root of X = -2
Answer:
-8
Step-by-step explanation:
So to solve this, you just cube both sides to "cancel" out the cube root
\(x = (-2)^3\)
Now just multiply -2 * -2 = 4, and now one more time, 4 * -2 = -8
\(x=-8\)
Divide and check the answer with formula 252 ÷2
\( \hookrightarrow \sf \dfrac{252}{2} \\ \\ \)
\( \hookrightarrow \sf126\)
Find the area of Triangle A in square centimeters.
Answer is in the photo. I can't attach it here, but I uploaded it to a file hosting. link below! Good Luck!
tinyurl.com/wpazsebu
please help. it's my bell ringer and I will be late.
If you want the probability of randomly drawing a red marble to be 3/5, you need to add 13 red marbles.
How many red marbles must be added?
The probability of drawing a red marble is equal to the quotient between the number of red marbles and the total number of marbles in the bag.
Initially, there are 12 red marbles and 32 in total, so if we add another x red marbles, we will have:
12 + x red marbles.32 + x in total.Then the probability will be:
p = (12 + x)/(32 + x)
And we want this to be 3/5, then we need to solve:
(12 + x)/(32 + x) = 3/5
(12 + x)*5 = 3*(32 + x)
60 + 5x = 96 + 3x
5x - 3x = 96 - 60
2x = 36
x = 36/2 = 13
x = 13
You need to add 13 red marbles.
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What is the vertex and x-intercepts of -6x^2-50x+3085. 25
The vertex and x-intercepts of -6x^2-50x+3085. 25 are approximately -42.60 and 30.97.
To find the vertex and x-intercepts of the quadratic function -6x^2-50x+3085.25, we first need to express it in standard form -6x^2-50x+3085.25 = -6(x^2+8.33x-514.21)
So the x-intercepts are approximately -42.60 and 30.97.
We can complete the square to find the vertex of the parabola:
-6(x^2+8.33x-514.21) = -6[(x+4.165)^2-575.641]
-6(x^2+8.33x-514.21) = -6(x+4.165)^2+3453.844
So the vertex is at (-4.165, 575.844).
To find the x-intercepts, we can set y = 0 and solve for x:
-6x^2-50x+3085.25 = 0
Dividing both sides by -2.25 to simplify, we get:
2.6667x^2+22.2222x-1372.2222 = 0
Using the quadratic formula, we get:
x = (-22.2222 ± sqrt(22.2222^2-4(2.6667)(-1372.2222))) / (2(2.6667))
x = (-22.2222 ± sqrt(37511.1116)) / 5.3334
x = (-22.2222 ± 193.7262) / 5.3334
So the x-intercepts are approximately -42.60 and 30.97.
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b) 10 + 2x = x +13
X =
x is equal to 3 if not then I just we are asking the wrong questions
Given the circle below, find the value of x.251L (9x+26)*
Given the following:
Then:
\(a=\frac{b-c}{2}\)In this case, we are given:
a = (9x + 26)
b = 251
To find c, we rest a whole circle (360) and rest angle b:
\(c=360-251=109\)And now, we use the formula from above:
\(9x+26=\frac{251-109}{2}\)And solve for x:
\(\begin{gathered} 9x+26=\frac{142}{2} \\ . \\ 9x=71-26 \\ . \\ x=\frac{45}{9} \\ . \\ x=5 \end{gathered}\)The answer is the last option, x = 5
construct a box plot from the given data. diameters of cans in an assembly line: 5.5,5.5,5.1,5.3,5.2,5.5,5.5,5.2,5.6,5.2
To construct a box plot from the given data, which represents the diameters of cans in an assembly line, we need to determine the five-number summary and plot the corresponding box and whisker plot.
The five-number summary consists of the minimum value, the first quartile (Q1), the median (Q2), the third quartile (Q3), and the maximum value.
To construct the box plot, we start by arranging the data in ascending order: 5.1, 5.2, 5.2, 5.2, 5.3, 5.5, 5.5, 5.5, and 5.6. The minimum value is 5.1, and the maximum value is 5.6. The median is the middle value, which in this case is 5.3.
To find the first quartile (Q1) and the third quartile (Q3), we divide the data into two halves. Q1 is the median of the lower half, which consists of 5.1, 5.2, 5.2, and 5.2. Q3 is the median of the upper half, which consists of 5.5, 5.5, 5.5, and 5.6. The box plot will show the minimum value, Q1, Q2 (median), Q3, and the maximum value, giving us a visual representation of the distribution and variability of the data.
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Write the equations of two lines that are parallel to the line
3x – 6y – 5 = 0.
What is the range of f(x) = 2(x+3)^2 + 1?
Answer:
Range: [1, ∞)
Step-by-step explanation:
\(f(x)=2(x+3)^2+1\)
Range: [1, ∞)