Suppose 50% of all Chicago residents know what Steve Bartman did and a random sample of...

Suppose 50% of all Chicago residents know what Steve Bartman did and a random sample of 100 Chicago residents is selected.

a) What approximately is the probability at least 55 in the sample know what Steve did?

b) Suppose the sample were 100 times larger (i.e. a sample of 10,000 Chicago residents). What is probability that 5,500 residents know what Steve Bartman did?

Solutions

Expert Solution

a. Approximate Probability that at least 55 in the sample of 100 knows what Steve did is 0.1841

b. Probability that 5500 in the sample of 10000 knows what Steve did is 0

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orchestra answered 1 year ago

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