Ram had rs.200. He spent ¼ & gave ½ of rs.90 to his friend. Find how much money is left with him?​

A sample statistic handles the parameter it is intended to estimate so when target population and indeed the sampled population are equal.

Data gathering, organization, analysis, interpretation, as well as presentation are all topics covered in the field of statistics. It is customary to start with a statistical population or perhaps a statistical model to be investigated when using statistics to solve a scientific, industrial, or social problem.

To sum up, the five reasons to studying statistics are to be able to do research efficiently, to read and assess journal articles, to even further develop critical thinking and analytical skills, to behave as an informed consumer, and to be aware of when you need to seek outside statistical support.

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The expression for the number of paid vacation days for x years is

2 + 3x.

An expression contains terms with addition, subtraction, multiplication, and division.

Example: 2 + 3x + 4y = 7 is an expression.

We have,

Number of paid vacation days = 2

Now,

She will receive an additional three days per year of paid vacation for each year she remains with the company.

This means,

For x years,

Number of paid vacation days = 2 + 3x

Now,

The expression for x years.

= 2 + 3x

Thus,

2 + 3x is the expression for the number of paid vacation days for x years.

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The complete question.

A)

Write an expression for the number of paid vacation days for x years.

Steve spent 2/3 of $15, to find how much this 2/3 of $15 is, we have to multiply $15 by 2/3, as follows:

Therefore, we have found that Steve already spent $10 .

Answer:

$55

Explanation:

If you already have $30 and the bracelet cost $250, you need to save $220 in the next four months because:

$250 - $30 = $220

Then, to know how much do you need to save each month, we need to divide $220 by 4, so:

$220 ÷ 4 = $55

Therefore, you need to save $55 each month to be able to buy the bracelet.

The 99% confidence interval for the mean amount of money this bank's customers keep in their checking accounts is approximately $766 ± $19.33, or between $746.67 and $785.33.

To calculate the 99% confidence interval for the mean amount of money this bank's customers keep in their checking accounts, we can use the formula:

Confidence interval = mean ± (critical value) * (standard deviation / √sample size)

First, we need to find the critical value for a 99% confidence level. Since the sample size is large (n > 30), we can assume the sampling distribution is approximately normal and use the Z-distribution.

The critical value for a 99% confidence level is approximately 2.576.

Next, we can substitute the values into the formula:

Confidence interval = $766 ± (2.576) * ($85 / √128)

Calculating the expression inside the parentheses:

$85 / √128 ≈ $7.51

Now, we can substitute this value into the formula:

Confidence interval = $766 ± (2.576) * ($7.51)

Calculating the expression inside the parentheses:

(2.576) * ($7.51) ≈ $19.33

Therefore, the 99% confidence interval for the mean amount of money this bank's customers keep in their checking accounts is approximately $766 ± $19.33, or between $746.67 and $785.33.

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Answer:

The cubic function f(x) = x3 is symmetric about the origin (it is an odd function). Here are some types of functions that are odd: Lines Through The Origin – any line with a zero y intercept (b = 0) and a nonzero slope (m not zero) will have equation f(x) = mx.

Step-by-step explanation:

Answer: No

f(x) = x³ + 2x − 5

Step-by-step explanation:

No

f(x) = x³ + 2x − 5

Minimum percentage: 96% of the data set lies between 50 and 100.

The value of k:

Mean – (k) (sd) = lower limit

75 – 5K - 50

75 – 50 = 5k

25 = 5k

K = 5

For the percentage, we are using:

1 – 1/k^2.

1 - 1/ 25 = 24/25 = 96%

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The given sequence is:

7, 28, 112, 448...........

From the sequence above:

The first value, a = 7

The common ratio, r = 28/7 = 112/28 = 448/112

r = 4

Since there is a common ratio of r = 4, the sequence is a geometric sequence that has the formula:

the following expressions is correctly written in scientific notation

is, D. 2.964.

An expression is any mathematical statement which consists of numbers, variables and an arithmetic operation between them.

here, we have,

the following expressions is correctly written in scientific notation

is, D. 2.964.

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If your index is used to access the indexed variables of the array has the value of a non-existent index, this is called Index out-of-bounds.

What is Index out-of-bounds?

An index out-of-bounds error happens when an index used to access the indexed variables of an array or a list has a value that is outside the valid index range. This signifies that the index is either less than zero or larger than or equal to the array or list's size.

Assume we have a 5-element array and want to retrieve the entry at index 7. Because the array only has 5 entries, index 7 is out of limits, and attempting to access it will result in an index out-of-bounds error.

An index out-of-bounds error can create unpredictability in a program, such as reading or writing to memory regions not intended for usage by the program, causing the program to crash. To prevent index out-of-bounds issues, make sure the index used to access the array or list is inside the valid index range.

Therefore, if your index is used to access the indexed variables of the array has the value of a non-existent index, this is called Index out-of-bounds.

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If your index is used to access the indexed variables of the array has the value of a non-existent index, this is called an "out-of-bounds" error. This means that the index being used to access the array is either too high or too low, and there is no corresponding variable at that index.

This can cause unexpected behavior in a program and can even cause it to crash. It is important to always ensure that your indexes are within the bounds of the array and that the values being used are valid.
When an index is used to access the indexed variables of an array, but the value of the index is not within the valid range of indices for that array (i.e., the index is for a non-existent element), this situation is called an "out-of-bounds" access.

When you attempt to access an element using an out-of-bounds index, you might encounter unexpected behavior or errors, as the program tries to access a memory location that is not part of the array. To avoid this, always ensure that the index value is within the valid range of indices for the given array.

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At least 99% confidence that the sample percentage is inside 0.03 of the absolute proportion is required for 1844 residents.

Choose p = 0.5 since the previous estimate of population percentage is uncertain.

E = 0.03 is the margin of error.

A 99% confidence interval requires the following crucial value: \(z_{a/2}\) = 2.576

The act of deciding how many observations or repetitions to incorporate into a statistical sample is known as sample size determination.

The sample size,

n = 0.5 × (1 - 0.5) × (\(z_{a/2}\) ÷ E)²

n = 0.25 × (2.576 ÷ 0.03)²

n = 1843.27 ≈ 1844

As a result, the needed sample size is 1844.

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Answer:

x=5,1,4

Step-by-step explanation:

a

Answer:

13

Step-by-step explanation:

  $.   :   text message

   8.   :   80

=  ?     :   130

? =  ( 8 * 130) / 80

? = 13

Answer:

13

Step-by-step explanation:

 $.   :   text message

  8.   :   80

=  ?     :   130

? =  ( 8 * 130) / 80

? = 13

Statistical significance is also known as the risk of  Type I error

Probability is the likelihood or chance that an event will occur. Statistical significance can be used to measure the level of confidence of measured data.

The probability of the type I error is commonly called the significance level of the hypothesis test and is denoted by the symbol α.

Hence we can conclude that statistical significance is also known as the risk of  Type I error

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The correct answer is A. The null hypothesis is rejected in error.

In statistical hypothesis testing, a Type II error occurs when the null hypothesis is incorrectly retained or failed to be rejected when it is actually false.

In other words, a Type II error happens when the researcher concludes that there is no significant difference or relationship between variables when, in reality, there is.

It is a false negative result, as the researcher fails to detect a true effect or relationship.

Option A accurately describes Type II error, while the other options are not related to Type II error.

Option B refers to rejecting the research hypothesis, which is not a Type II error but rather a Type I error.

Option C refers to the study being underpowered, which may increase the likelihood of both Type I and Type II errors but is not a direct description of Type II error.

Option D mentions double-blinding, which is a methodological consideration and not directly related to Type II error.

Option E refers to accepting the research hypothesis in error, which is not a Type II error but rather a correct decision or Type I error.

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Answer:

A week of laying in bed eating hot cheetos and watch anime

Step-by-step explanation:

Answer:

Slope: -1/6

Midpoint of AB: (1, 8.5)

Distance of AB: √37

Step-by-step explanation:

Slope formula: \(m = \frac{y2-y1}{x2-x1}\)

Midpoint formula: \((\frac{x1+x2}{2} ,\frac{y1+y2}{2} )\)

Distance formula: \(d = \sqrt{(x2-x1)^{2}+(y2-y1)^{2}}\)

9514 1404 393

Answer:

  k = -1

Step-by-step explanation:

Put the given value of x in the equation, and solve the resulting equation for k.

  2(5 -3) +k(1 +2·5) = k - 5 - 1

  2(2) +k(11) = k -6 . . . . simplify a bit

  10k = -10 . . . . . . . . . . add -4-k to both sides

  k = -1 . . . . . . . . . . . . . divide by 10

The value of k is -1.

_____

Check

Use k = -1 in the original equation and solve for x.

  2(x -3) -(1 +2x) = -1 -x -1

  2x -6 -1 -2x = -x -2 . . . . eliminate parentheses

  x = 7 -2 = 5 . . . . . . add x+7; answer checks OK

Answer:

\(10, 20, 202, 404, 505\) and \(1010\) has more than \(3\) factors.

Step-by-step explanation:

Given: A number \(2020\)

To find: How many factors of \(2020\) have more than 3 factors?

Solution:

We have,

Factors of \(2020\) are \(1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010\)

Now, we have to find the number of factors that has more than \(3\) factors. So, let us consider each factor of \(2020\) one by one.

Factor of \(1: 1\)

Factors of \(2: 1, 2\)

Factors of \(4: 1, 2, 4\)

Factors of \(5: 1, 5\)    

Factors of \(10: 1, 2, 5, 10\)

Factors of \(20: 1, 2,4, 5, 10, 20\)

Factors of \(101: 1,101\)

Factors of \(202: 1,2, 101, 202\)

Factors of \(404: 1, 2, 4, 101, 202, 404\)

Factors of \(505: 1, 5, 101, 505\)

Factors of \(1010: 1, 2, 5, 10, 101, 202, 505, 1010\)

Clearly, \(10, 20, 202, 404, 505\) and \(1010\) has more than \(3\) factors.

Hence, \(10, 20, 202, 404, 505\) and \(1010\) has more than \(3\) factors.

Answer:

The equation could be used to determine the total production costs for the company if it produced x widgets last month is

y = $8,906.00 + $2.64x ⇒ B

Step-by-step explanation:

The form of the linear equation is y = m x + b, where

∵ A company has fixed costs of $8,906.00 each month

→ That means it is a fixed value every month

∴ b = 8,906.00

∵ The cost of each widget it produces is $2.64 for

→ That means the value is changing according to the number of widgets

∴ m = 2.64

∵ y represents the total costs of production last month

∵ x represents the number of widgets the factory produced last month

→ Substitute the values of m and b in the form of the equation above

∴ y = 2.64x + 8,906.00

The equation could be used to determine the total production costs for the company if it produced x widgets last month is

y = $8,906.00 + $2.64x

Answer:

\(2\sqrt{5}\)

Step-by-step explanation:

\(\sqrt{20}\)

20 can be written as a product of 4 and 5.

\(\sqrt{4 \times 5}\)

4 is a perfect square.

\(\sqrt{4} \times \sqrt{5}\)

Square root of 4 is 2.

\(2 \times \sqrt{5}\)

Answer:

853

Step-by-step explanation:

u have 20HP

u dead

With an error of magnitude no more than 6×10^−4, the values of x for which sin x can be replaced by x - x^3/6 are roughly: -0.3728 ≤ x ≤ 0.3728

To find the values of x for which sin x can be replaced by x - x^3/6 with an error of magnitude no greater than 6×10^−4, we need to analyze the Taylor series expansion of sin x around x = 0. The Taylor series for sin x is:

sin x = x - x^3/6 + x^5/120 - x^7/5040 + ...

We are given the approximation sin x ≈ x - x^3/6, which corresponds to the first two non-zero terms of the Taylor series. To find the error bounds, we consider the next term in the series, x^5/120. To have an error no greater than 6×10^−4, we need:

|x^5/120| ≤ 6×10^−4

Now, solve for x:

|x^5| ≤ 72×10^−4
|x| ≤ (72×10^−4)^(1/5)

Calculating the fifth root gives:

|x| ≤ 0.3728

Therefore, the values of x for which sin x can be replaced by x - x^3/6 with an error of magnitude no greater than 6×10^−4 are approximately:

-0.3728 ≤ x ≤ 0.3728

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Answer:

(x+6)(x+6)

\(x^2+12x+36\)

(x+8)(x-5)

\(x^{2}+3x-40\\\)

(x-5)(x-2)

\(x^{2}-7x+10\)

Step-by-step explanation:

Brainliest pls hope it helped^^

Answer:

a) x^(2)+12x+36

b) x^(2)+3x-40

c) x^(2)-7x+10

Step-by-step explanation:

Answer:

Step-by-step explanation:

System as per the graphed lines:

The are two solutions.

Solve by substitution.

Substitute y into second equation:

Find y:

The best estimate is x = 6.8 and y = 2.1

Correct choice is A

Answer:

It is a function because the input values are different.

Answer:

a 33.3 percent

Step-by-step explanation:

<hdhdhdhdhhdhdhdhdd

Answer:

Step-by-step explanation:

There are two possible scenarios

1. First marble is blue and second marble is not blue:

2. First marble is not blue and second marble is blue:

The probability that one, but not both, of them, will be blue:

Correct option is D

Answer:

Step-by-step explanation:

It’s 88