If a and b are mutually exclusive events then pa or b

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Reference no: EM13624205

If A and B are mutually exclusive events then P(A or B) equals...

a. P(A) + P(B) - P(A and B)

b. P(A) * P(B)

c. P(A) + P(B)

d. P(AIB) + P(BIA)

Which of the following is not a requirement of the binomial distribution

a. the trials must be independent

b. the probability of a success changes from one trial to the next

c. the sample size must be fixed

d. only two outcomes are possible

Which distribution would be most appropriate if one wanted to find the probability of selecting three Republicans from a sample of 15 politicians?

a. Binomial

b. Continuous

c. Hypergeometric

d. Poisson

A z-value

a. Is the standard deviation for the standard normal probability distribution

b. Is a measure of how many standard deviations the mean is from the median

c. Is the difference of the mean and the probability of z

d. Is a measure of how many standard deviations a particular score from the mean

Reference no: EM13624205

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