A sample of 15 recent college graduates found that starting salaries for attorneys in New York City had a mean of $102,342 and a standard deviation of $21,756. What does mu represent

Population mean= mu = μ= $102,342

Step-by-step explanation:

Here

Sample size= n= 15

Population mean= mu = μ= $102,342

Population standard deviation = sigma = σ =$21,756

The population mean is given by mu = μ

Both the means , the sample mean and the population mean give the same measure but there is difference in their calculations and usage.

The population mean mu is calculated by using the population size N but the sample mean x bar is calculated using sample size.

In the given question the sample size is given of the students whereas the mean salaries for attorneys in New York City  gives the population mean because the attorneys in New York City contains all the attorneys given in the city. It is not a sample.

The population gives all the members of the group. So here none is missing.

+25 = x

step-by-step explanation:

here x is the hypotenuse of a right triangle whose legs are 7 and 24.   by the pythagorean theorem, 7² + 24² must equal x²:

x² = 49 + 576 = 625.   thus, x = +√625 = +25 = x