Which Excel function gives the cumulative probability for 𝑋 = 72, 𝜇 = 65, 𝜎 = 8? A. =NORM.S.DIST(72, TRUE) B. =NORM.DIST(72, 65, 8, TRUE) C. =NORM.INV(72, 65, 8) D. =STANDARDIZE(72, 65, 8) E. =Z.TEST(72, 65, 8)

If test scores are normally distributed with 𝜇 = 50, 𝜎 = 5, what is the Z-score for a score of 60? A. -2 B. 1.5 C. 2 D. 0 E. 1

What is the number of ways to choose 3 students out of 8?a) 24 b) 336 c) 56 d) 72 e) 168

A fair coin is tossed 5 times. What is the probability of getting exactly 3 heads?a) 5/16 b) 0.3125 c) 0.25 d) 0.5 e) 1/8

A population consists of 10 red balls and 5 green balls. If 4 are selected without replacement, what distribution is used?a) Binomial b) Normal c) Hypergeometric d) Poisson e) Exponential

How many 3-digit numbers can be formed using digits 1 to 5 without repetition?a) 60 b) 125 c) 20 d) 100 e) 10

Which statement best describes 𝑋 ∼ 𝑁 ( 50 , 16 )? A. Mean = 16, SD = 50 B. Mean = 16, Variance = 50 C. Mean = 50, SD = 16 D. Mean = 50, Variance = 16 E. Mean = 4, SD = 50

If λ = 3 for a Poisson distribution, what is P(X = 0)? a) 1 b) 0 c) e^-3 d) 3e^-3 e) (3^0 * e^-3)/0!

A question mentions “an average of 4 errors per page” and asks for the probability of getting exactly 2 errors on a page. What type of distribution should you use? A. Normal B. Binomial C. Exponential D. Uniform E. Poisson

What is the Z-score for 𝑋 = 90, 𝜇 = 70, 𝜎 = 10? A. 1 B. -2 C. 2 D. 0 E. 20

What is the probability of drawing an ace from a standard deck of cards using classical definition?a) 1/4 b) 4/52 c) 1/13 d) 1/2 e) 13/52

Which Excel function returns the Z-score for 𝑋 = 72, 𝜇 = 65, 𝜎 = 8? A. =Z.TEST(72, 65, 8) B. =NORM.DIST(72, 65, 8, TRUE) C. =STANDARDIZE(72, 65, 8) D. =NORM.INV(72, 65, 8) E. =NORM.S.INV(0.72)