The number of public school teachers strikes in pennsylvania for a random sample of school years is shown.Find the sample variance and sample standard deviation. 9, 10, 14, 7, 8, 3

The ages​ (in years) of a random sample of shoppers at a gaming store are shown. Determine the​ range, mean,​ variance, and standard deviation of the sample data set. 12, 20, 23, 13, 18, 17, 22, 17, 15, 16 The range is The mean is ( Simplify your answer. Round to the nearest tenth as​ needed.) The variance is (Simplify your answer. Round to the nearest hundredth as​ needed.) The standard deviation is (Simplify your answer. Round to the nearest tenth as​ needed.) Can you please explain me this math problem having trouble understanding. Thank you.

Find the sample variance and standard deviation. 4, 47, 14, 48, 32, 22, 34, 28, 27, 32

A population of grades for a statistics class of six students is given below:   71,63,68,80,85,82   Find the variance for this population. Population Variance =

Find the sample standard deviation. 2, 6, 15, 9, 11, 22, 1, 4, 8, 19 Send data to Excel O 2.1 0 7.1 0 6.8 Continue

The ages (in years) of a random sample of shoppers at a gaming store are shown. Determine the range, mean, variance, and standard deviation of the sample data set. 12, 19, 23, 14, 16, 16, 22, 16, 15, 19 The range is (Simplify your answer.) The mean is (Simplify your answer. Round to the nearest tenth as needed.) The variance is (Simplify your answer. Round to the nearest tenth as needed.) The standard deviation is (Simplify your answer. Round to the nearest tenth as needed.)

The ages​ (in years) of a random sample of shoppers at a gaming store are shown. Determine the​ range, mean,​ variance, and standard deviation of the sample data set.   12​, 20​, 23​, 14​, 18​, 18​, 19​, 18​, 15​, 19   1) The range is ______ 2) The mean is ______ 3) The variance is ________

The numbers of regular season wins for 10 football teams in a given season are given below.   Determine the​ range, mean,​ variance, and standard deviation of the population data set.   2​, 10​, 15​, 4​, 14​, 10​, 12​, 10​, 3​, 9

A developmental psychologist is interested in studying how long babies gaze at a photograph of a human face. To test this question, she shows a picture to a sample of six babies and records the length of their gaze in seconds. The data are as follows: 12, 17, 18, 20, 20, 29. Calculate the mean, median, mode, range, variance and standard deviation for the sample.

A company conducted a survey to determine the average age of its employees. The ages of 10 randomly selected employees are as follows: 25, 28, 30, 35, 40, 42, 45, 48, 50, and 55. Calculate the sample mean, sample variance, and standard deviation of the ages.