BBA Business Statistics MCQs – Practice Test 9 (Chapter 7)

Probability Distributions MCQs with Answers PDF Download – Test 9

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Probability Distributions MCQs – Practice Test 9 PDF Download

MCQ 41: The probability distribution of discrete random variable is classified as:

probability mass function
posterior mass function
interior mass function
continuous mass function

MCQ 42: The standard normal probability distribution has mean equal to 40, whereas the value of random variable x is 80 and the z-statistic is equal to 1.8 then the standard deviation of standard normal probability distribution is:

MCQ 43: In standard normal probability distribution, the z-score of distribution will be zero if:

x < μ
x > μ
x = μ
all of above

MCQ 44: If the value of λ is 9 and value of random variable x is 5 then the value of z-score is:

−2.58
−1.86
−2.34
−1.34

MCQ 45: The formula of calculating the expected value of random variable x of gamma distribution is as:

E(x) = n ⁄ μ
E(x) = pq ⁄ μ
E(x) = μ ⁄ np
E(x) = α ⁄ μ

BBA Business Statistics MCQs App & e-Book – Probability Distributions Study Guide

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