Determining the probability of fatal accident over lifetime

Assignment Help Basic Statistics

Reference no: EM1313520

Q1) Probability is 1 in 4,000,000 that single auto trip in United States will result in fatality. Over a lifetime, the average U.S. driver takes 50,000 trips.

(a) Determine the probability of fatal accident over lifetime? Describe your reasoning carefully. Suppose independent events. Why might the supposition of independence be violated?

(b) Why might driver be tempted not to make use of seat belt "just on this trip"?

Q2) Burger Bin fast-food restaurant sells mean of 24 burgers an hour and its burger sales are normally distributed. If hourly sales lies between 24 and 42 burgers 49.85% of time, the standard deviation is _______ burgers.

a) 3

b) 6

c) 9

d) 18

Q3) Find out the probability that Burger Bin will sell 12 to 18 burgers in one hour?

a) 0.136

b) 0.239

c) 0.342

d) 0.475

Reference no: EM1313520

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