Author Question: Suppose an experiment consists of identical, independent, dichotomous trials (two possible outcomes ... (Read 59 times)

kandiwilson165@gmail.com · **on:** Feb 26, 2023

Question 1

Suppose a couple has two children, andXis a random variable that counts the number of girls. The probability distribution forXis shown in the plot.

What isμ_x, the expected number of girls, in this situation?

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0.5

◦

1.0

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1.25

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1.5

Question 2

Suppose an experiment consists of identical, independent, dichotomous trials (two possible outcomes denoted arbitrarily as “success” or “failure”) with a constant probability of success. A random variable is defined as the number of trials necessary to observe the first “successful” outcome. This random variable can be modeled as:

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binomial.

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geometric.

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hypergeometric.

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Poisson.

gcurrens · **Reply #1 on:** Feb 26, 2023

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