A study shows that the cost of new textbook is approximately normally distributed with a mean P142 and a standard deviation P65. What is the probability that a randomly selected textbook costs; a) between P135.50 and P148.50? b) between P129 and P135.50? c) more than P155? d) below P150? e. What percentage of all textbooks costs more than P55?
A study shows that the cost of new textbook is approximately normally distributed with a mean P142 and a standard deviation P65. What is the probability that a randomly selected textbook costs; a) between P135.50 and P148.50? b) between P129 and P135.50? c) more than P155? d) below P150? e. What percentage of all textbooks costs more than P55?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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