2. The average of public jeepneys plying in Cebu is 18 years. Assume that the standard deviation is 4 years if a random sample of 9 public jeepneys is chosen, find the probability that the mean of jeepneys ages is between 15 to 21 years.

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 13PPS
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2. The average of public jeepneys plying in Cebu is 18 years. Assume that the standard
deviation is 4 years if a random sample of 9 public jeepneys is chosen, find the probability that
the mean of jeepneys ages is between 15 to 21 years.
Transcribed Image Text:2. The average of public jeepneys plying in Cebu is 18 years. Assume that the standard deviation is 4 years if a random sample of 9 public jeepneys is chosen, find the probability that the mean of jeepneys ages is between 15 to 21 years.
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