QNT 275 Week 3 Quiz

QNT 275 Week 3 Quiz | Assignment Help | University Of Phoenix

1.      In a study of chainsaw injuries, 57 percent involved arms or hands. If three different chainsaw injury cases are randomly selected, find the probability that they all involved arms or hands.

2.      Consider a standard deck of 52 playing cards, a randomly selected card from the deck, and the following events: R = red, B = black, A = ace, N = nine, D = diamond, and C = club. 
Are D and C mutually exclusive?

3.      New car owners were asked to evaluate their experiences in buying a new car during the past 12 months. In the survey, the owners indicated they were most satisfied with their experiences at the following three dealers (in no particular order): Subaru, Honda, and Buick. When ranking the dealers, how many outcomes are possible?

4. Probabilities must be assigned to each sample space outcome so that the probabilities of all the sample space outcomes add up to _____________.

5. Probabilities must be assigned to each sample space outcome so that the probabilities of all the sample space outcomes add up to _____________.

6. The mean and median are the same for a normal distribution.

7.    A standard normal distribution has a mean of ____________ and standard deviation of     ____________.

8. In a binomial distribution, the random variable X is continuous.