Can someone please answer my recent question

What is the value of the function at x=−2? <br> A) y=−2<br> B) y = 0<br> C) y = 2<br> D) y = 3

VashaNatasha [74]

It’s A for the value of the function u asking for

5 0

3 years ago

Which strategies can be used to solve this problem?

Scorpion4ik [409]

B. and D. work. You are trying to figure out how many more cars they painted in the first and second years together than the third year. (5,000+7,213)-8,201=4,012

6 0

3 years ago

A person runs 1 4/5 miles in 1/5 of an hour determine how many miles they are running per hour

asambeis [7]

Multiply 1 4/5 by 5
9/5 * 5/1 = 45/5 = 9 miles

8 0

2 years ago

Read 2 more answers

2/3 * (-3) h SD j ni djndjifnr

Eddi Din [679]

2/3 x (-3)
-2/3 x3
= -2

5 0

2 years ago

true or false If x represents a random variable with mean 114 and standard deviation 40, then the standard deviation of the samp

Goshia [24]

Answer:

$\mu = 114, \sigma = 40$

We also know that we select a sample size of n =100 and on this case since the sample size is higher than 30 we can apply the central limit theorem and the distribution for the sample mean would be given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And the standard deviation for the sampling distribution would be:

$\sigma_{\bar X}= \frac{40}{\sqrt{100}}= 4$

So then the answer is TRUE

Step-by-step explanation:

Let X the random variable of interest and we know that the true mean and deviation for this case are given by:

$\mu = 114, \sigma = 40$

We also know that we select a sample size of n =100 and on this case since the sample size is higher than 30 we can apply the central limit theorem and the distribution for the sample mean would be given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

And the standard deviation for the sampling distribution would be:

$\sigma_{\bar X}= \frac{40}{\sqrt{100}}= 4$

So then the answer is TRUE

6 0

3 years ago