Last year, eight employees of an electronics company retired. Their ages of retirement are listed below, 65, 63, 59, 64, 58, 62, 61, 90   Find the standard deviation of the retirement ages a) 10.3 years b) 32 years c) 3.6 years d) 4.5 years e) none of the above

Compute the mean of 84, 41, 86, 76, 43, 28, 63. Round to 2 decimal places as needed

find the gemetric mean of 2 and 20

Compute the mean of these numbers: 12, 18, 12, 12, 18, 12, 18, 18, 18, 12 (hint: use weighted mean formula)

The average weekly salaries (in dollars) earned by teachers in 1994 are given below for five European countries. Country Weekly Salary France $1,213 Germany $1,752 Greece $824 Ireland $1,101 Italy $1,006 a) What is the range for salaries? b) What is the standard deviation of the salaries

A) minor mode  b) major mode  c) median  d) mean

11) 14 students on the track team recorded the following number of seconds as their best time for the 100-yard dash: 13.5, 13.7, 13.1, 13.0, 13.3, 13.2, 13.0, 12.8, 13.4, 13.3, 13.1, 12.7, 13.2, 13.5 Find the interquartile range.

Using the following data: 23, 74, 18, 21, 20, 43, 56, 71, 73, 65, 34, 47, 51, 55, 56, 29 Calculate a bin width that would form six uniform intervals.