Suppose that fuel efficiency (miles per gallon, mpg) for a particular car model under specified conditions is
Question:
a. What is the probability that the fuel efficiency for a randomly selected car of this model is between 29 and 31 mpg?
b. Would it surprise you to find that the efficiency of a randomly selected car of this model is less than 25 mpg?
c. If three cars of this model are randomly selected, what is the probability that each of the three have efficiencies exceeding 32 mpg?
d. Find a number x* such that 95% of all cars of this model have efficiencies exceeding x* (i. e., P(x . x*) = 0.95).
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This extremely small probability indicates that it would be surprising to find that the efficiency o...View the full answer
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