A study shows that children watched television by an average of 48 hours per week with a standard deviation of 12 hours per week. 1. If a sample of 100 children are randomly selected in Cabancalan Elementary School, find the probability that they watch an average of: a. 45 hours to 50 hours. b. more than 52 hours C. below 46 hours.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
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Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 16HP
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A study shows that children watched television by an average of 48 hours
per week with a standard deviation of 12 hours per week.

A study shows that children watched television by an average of 48 hours
per week with a standard deviation of 12 hours per week.
1. If a sample of 100 children are randomly selected in Cabancalan
Elementary School, find the probability that they watch an average of:
a. 45 hours to 50 hours.
b. more than 52 hours
C. below 46 hours.
2. If a sample of 150 children are selected in Barangay Cabancalan, find the
probability that they watch an average of:
a. 45 hours to 50 hours.
b. more than 49 hours
c. below 46 hours.
Transcribed Image Text:A study shows that children watched television by an average of 48 hours per week with a standard deviation of 12 hours per week. 1. If a sample of 100 children are randomly selected in Cabancalan Elementary School, find the probability that they watch an average of: a. 45 hours to 50 hours. b. more than 52 hours C. below 46 hours. 2. If a sample of 150 children are selected in Barangay Cabancalan, find the probability that they watch an average of: a. 45 hours to 50 hours. b. more than 49 hours c. below 46 hours.
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