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L15.2082 - Statistics for Business and Economics (2024/2025)
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A campus finance officer finds that, for all parking tickets issued, 78% of fines are paid. The fine is $2.
In the most recent week 520 parking tickets have been issued.
Find the mean of the amount of money that will be obtained from the payment of these fines.
The negative binomial distribution has two parameters: the number of trials, n, and the probability of success on each trial, p.
Among employed men, 30% have never been married. What is the probability that we find the first never-married man within the first 4 we sample?
The quality control manager of Marilyn's Cookies is inspecting a batch of chocolate-chip cookies that has just been baked. If the production process is in control, the mean number of chip parts per cookie is 6.0.
What is the probability that in any particular cookie being inspected, exactly 7 chip parts will be found?
Susan hits 80% of her free throws in basketball games. If she had 30 free throws in last week's game, what was Susan's expected number of hits?