5 Consider the population described by the probability distribution shown here: The random variable x is observed
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5 Consider the population described by the probability distribution shown here:
The random variable x is observed twice. If these observations are independent, verify that the different samples of size 2 and their probabilities are as follows:
a. Find the sampling distribution of the sample mean x.
b. Construct a probability histogram for the sampling distribution of x.
c. What is the probability that x is 4.5 or larger?
d. Would you expect to observe a value of x equal to 4.5 or larger? Explain.
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