standard deviation of 5 hours. What amount of time do the bottom 20% of teachers work?

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 1GP
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Question
The time spent by a teacher at work in the holidays is
normally distributed with a mean of 20 hours and a
standard deviation of 5 hours. What amount of time do
the bottom 20% of teachers work?
24.21
15.79
19.20
10.79
Transcribed Image Text:The time spent by a teacher at work in the holidays is normally distributed with a mean of 20 hours and a standard deviation of 5 hours. What amount of time do the bottom 20% of teachers work? 24.21 15.79 19.20 10.79
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