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A company has recently recruited new employees. The age of each of the recruits has been recorded below. 23 30 25 45 24 29 32 40 31 35 36 38 42 46 49 51 54 60 32 43 a) Starting at 20, group the data using a frequency distribution with intervals of 5, i.e. 20 - 24, 25 - 30 and so on. b) Find the mean age of the grouped data. c) Calculate the variance and standard deviation of the grouped data.

A company has recently recruited new employees. The age of each of the recruits has been recorded below. 23 30 25 45 24 29 32 40 31 35 36 38 42 46 49 51 54 60 32 43 a) Starting at 20, group the data using a frequency distribution with intervals of 5, i.e. 20 - 24, 25 - 30 and so on. b) Find the mean age of the grouped data. c) Calculate the variance and standard deviation of the grouped data.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 11PPS
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A company has recently recruited new employees. The age of each of the recruits has been recorded below. 23 30 25 45 24 29 32 40 31 35 36 38 42 46 49 51 54 60 32 43 a) Starting at 20, group the data using a frequency distribution with intervals of 5, i.e. 20 - 24, 25 - 30 and so on. b) Find the mean age of the grouped data. c) Calculate the variance and standard deviation of the grouped data.
Transcribed Image Text:A company has recently recruited new employees. The age of each of the recruits has been recorded below. 23 30 25 45 24 29 32 40 31 35 36 38 42 46 49 51 54 60 32 43 a) Starting at 20, group the data using a frequency distribution with intervals of 5, i.e. 20 - 24, 25 - 30 and so on. b) Find the mean age of the grouped data. c) Calculate the variance and standard deviation of the grouped data.
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