ment 2-201770.71922 Take Test Quiz D6-201770719. × https://aamullackboard.com/we

Question

ment 2-201770.71922 Take Test Quiz D6-201770719. × https://aamullackboard.com/webap | | a search 90% ption Instructions Multiple Attempts This test allows 10 attempts. This is attempt number 1. Force Completion This test can be saved and resumed later Question Completion Status: QUESTION 1 IFX is a normal random variable with mean ( )-50 and standard deviation ( -40. then the probability of X > 80 is: a, 0.7734 b, 1.0000 O c 0.0000 O d.0.2266 QUESTION 2 Click Save and Submit to sove and submit. Cick Save All Answers to sove all answers. Save All Answer

Explanation / Answer

P (X > 80)

z = (80 - 50)/40

z = 0.75

So, P(z > 0.75) = 1 - 0.77337 = 0.2266

D option

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