1. BUS 308 BUS308 Week 2 Quiz
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bus308-week-2-quiz/
1. In the application of Bayes' Theorem the sample information is combined with prior
probabilities to obtain posterior probabilities
2. The actual weight of hamburger patties is an example of a continuous random variable
3. A student's grade on an examination was transformed to a z value which is negative.
Therefore, we know that he scored
4. The expected value of a discrete random variable is:
5. The following formula: P(A U B) = P(A) + P(B) - P(A ∩ B) represents
6. A standard normal distribution has a mean of ____and standard deviation of ____
7. A(n) __________ is a measure of the chance that an uncertain event will occur
8. The MPG (mileage per gallon) for a mid-size car is normally distributed with a mean of 32
and a standard deviation of .8. What is the probability that the MPG for a selected mid-size car
would be less than 33.2?
9. For a Poisson random variable the mean and the variance equal the average number of
occurrences over the time interval (µx = ó2x = µ)
10. In a statistical study, the random variable , if the house is colonial, and if the house is not
colonial, then it can be stated that the random variable is continuous