This data is from a sample. Calculate the mean, standard deviation, and coefficient of variation. Suggestion: use technology. Round answers to two decimal places.

Find the mean of the following data set. Assume the data set is a sample. Round your answer to the nearest hundredth, if necessary. 30 45 35 37, 38, 38, 39, 33, 33, 36, 32, 26, 43, 30 20

10.46 Social scientists have produced convincing evidence that parental divorce is negatively associated with the educational success of their children. The paper “Maternal Cohabitation and Educational Success” [Sociology of Education (2005) 78:144–164] describes a study thataddresses the impact of cohabiting mothers on the success of their children in graduating from high school. The following table displays the educational outcome by type of family for 1,168 children.a. Display the above data in a graph to demonstrate any differences in the proportions of high school graduates across family types.b. Is there significant evidence that the proportions of students who graduate from high school are different across the various family types?

Find the range, the standard deviation, and the variance for the given samples. Round non-integers results to the nearest tenth.  74, 80, 76, 70, 69, 87, 59, 66, 52

Find the range, the standard deviation, and the variance for the given samples. Round non-integer results to the nearest tenth. 61, 80, 74, 66, 64, 94, 45, 51, 70

A simple data set has been provided to practice the basics of finding measures of variation. 2, 4, 8, 8 For the data​ set, determine the range and the sample standard deviation.

The ages for a sample of fans at a concert are listed. Whats the mean, median, mode, range, variance, standard deviation, and coefficient of variation?

Find the range, the standard deviation, and the variance for the given samples. Round non-integer results to the nearest tenth. 75, 58, 61, 63, 48, 96, 49, 82, 97

Determine the range and standard deviation of the prices of camping tents shown below. $109, $58, $82, $58, $211, $250, $58, $101, $144 0

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​, 13​, 17​, 19​, 18​, 13​, 16 Determine the​ range, mean,​ variance, and standard deviation of the sample data set.