Data for Problems 1 and 2 You are given the following data o

Data for Problems 1 and 2 You are given the following data on the ages of employees at a company. 26 32 28 45 57 52 44 36 42 27 41 53 55 48 32 42 44 40 36 37 1. Construct a frequency distribution with 4 classes. (10 points) 2. Calculate the sample standard deviation. (12 points)

Solution

Minimum = 26, maximum = 57

Range = 31

Classes = 4

3

For sample std deviation we take random variable as midpoint of the interval

Ages of employees of Xyz Ltd	Frequency
26 - 35	5
35 - 44	7
44 - 53	5
53 - 62	3