Question: A study on aggressive driving found that 49 % of drivers say that they have yelled at another driver. A random sample of 160drivers in

A study on aggressive driving found that 49 % of drivers say that they have yelled at another driver. A random sample of 160drivers in Halifax is selected and are asked whether they have yelled at other drivers.

3. What is the probability that at least 75 drivers will say "yes", they have yelled at another driver? [Hint: use normal approximation]

4. What is the probability that at most 77 drivers will say "yes", they have yelled at another driver? [Hint: use normal approximation]

5. Use the normal approximation to calculate the probability that there will be exactly 77 sampled drivers who will say yes. [Hint: use normal approximation]

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