Question

In: Statistics and Probability

2. In 2009 it was reported that 45% of all car accidents in Buffalo were alcohol...

2. In 2009 it was reported that 45% of all car accidents in Buffalo were alcohol related. Suppose we take a random sample of 200 car accidents in Buffalo and let X be the number which are alcohol related.

a. Define the random variable X of the form )

  1. Find the probability that fewer than half (less than 100) were alcohol related.

  1. Find the prob. that between 60 and 80, inclusive, were alcohol related.

  1. Find the probability at least 90 were alcohol related.

Solutions

Expert Solution

a.

2.

3.

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