Please work question 21 with steps on how to do it. simi- CHAPTER 6 Continuous P

Question

Please work question 21 with steps on how to do it. simi- CHAPTER 6 Continuous Probability Distributions CONTENTS 6.3 NORMALAPPROXIMATION OF BINOMIAL STATISTICS IN PRACTICE: PROBABILITIES PROCTER & GAMBLE 6.4 EXPONENTIAL 61 UNIFORM PROBABILITY DISTRIBUTION DISTRIBUTION Area as a Measure of Probability Computing Probabilities for the 62 NORMAL PROBABILITY Exponential Distribution DISTRIBUTION Relationship Between the Normal Curve Poisson and Exponential Standard Normal Probability Distributions Computing Probabilities for Any Normal Probability Distribution Grear Tire Company Problem

Explanation / Answer

Let the minimum score required to obtain be X

Since , the qualification criteria states that people who qualify are 2% of total population

=> P( IQ > Z ) = 0.02

=> P( IQ > (X - 100)/15 ) = 0.02

From the Normal Distribution Table

=> (X - 100)/15 = 2.06

=> X - 100 = 30.9

=> X = 130.9 ~ 131

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