An insurance company is looking over accident statistics. They want to estimate the standard deviation and variance of the age of the driver involved in an automobile accident. They record the age of the driver for a random selection of 100 accidents from around the country. Would it be more appropriate to find a sample standard deviation or population standard deviation in this situation? Select the correct answer below:   A. sample standard deviation   B. population standard deviation

Find the sample variance of the following set of data: 10, 5, 8, 8, 9. Round the final answer to one decimal place.( show calculation)

For the following sample data, answer the following:Remember you can copy and "paste special" the table into the Excel sheet. 85 65 83 14 66 76 10 57 67 2 98 17 What is ¯xx¯ ? What is the median?  What is the standard deviation? What is the Q1? What is the range?

For the following sample data, answer the following:Remember you can copy and "paste special" the table into the Excel sheet. 100 57 58 94 65 32 42 19 87 70 16 56 14 What is ¯xx¯ ? What is the median?  What is the standard deviation? What is the Q1? What is the range?

Calculate the range, variance and standard deviation for the following sample data. Scores: 10, 7, 9, 1, 2, 0, 6​

A sample of data is given as below:3, 5, 7. What is the standard deviation?

The scores of individual students on the American College Testing (ACT), a college readiness assessment, have a Normal distribution with a mean of 18.6 and a standard deviation of 6.0. At Northside High, 36 seniors take the test. Assume the scores at this school have the same distribution as national scores. What is the mean of the sampling distribution of the sample mean score for a random sample of 36 students? 0 1 0 6

Calculate the SEM (standard error of the mean) for the following data:a. Population standard deviation = 15b. Sample size = 25

Consider the following sample: 1, 4, 7, 2, 6. How does the standard deviation change when the 7 is replaced with a 12? Answer intuitively first, and then check your answers numerically.

Answer all questions: 1. What is the range and standard deviation for the following population of scores? Scores: 5,2,5,4