# Question 17 of 20 10 10 points there are on average

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Question 17 of 20 1.0/ 1.0 Points There are on average 20 old growth Sitka Spruce trees per acre in a local forest. Find the probability that that there are more than 8 Sitka Spruce trees in a ¼ acre. Round answer to 4
=1-POISSON.DIST(8,5,TRUE) Question 18 of 20 1.0/ 1.0 Points The mean number of visitors at a national park in one weekend is 55. Assume the variable follows a Poisson distribution. Find the probability that there will be at most 49 visitors at this
Part 6 of 6 - Probability 1.0/ 2.0 Points Question 19 of 20 1.0/ 1.0 Points If A and B are any two events with P(A) = .8 and P(B|A) = .4, then the joint probability of A and B is:
D. 0.40 Answer Key:A Feedback: P(B|A) = .8 = .8*.4 = P(A and B) Question 20 of 20 0.0/ 1.0 Points A gumball machine contains 350 grape flavored balls, 400 cherry flavored balls, and 550 lemon flavored balls. What is the probability of getting 1 grape ball, 1 cherry ball, and 1 lemon ball if each ball was removed and then replaced before choosing the next from the machine?
C. 0.0350 D. 0.0347 Answer Key:C Feedback: (350/1300)*(400/1300)*(550/1300) Part 1 of 6 - Binomial Distribution 4.0/ 5.0 Points Question 1 of 20 1.0/ 1.0 Points Approximately 8% of all people have blue eyes. A random sample of 20 people is selected, find
Question 2 of 20 1.0/ 1.0 Points If random variable X has a binomial distribution with n =7 and P(success) = p =0.6, find the
Question 3 of 20 0.0/ 1.0 Points A coin is flipped 30 times. What is the probability of getting 15 or more heads? Round answer to
Question 4 of 20 1.0/ 1.0 Points Suppose a random variable, x, arises from a binomial experiment. If n = 14, and p = 0.13, find
Question 5 of 20 1.0/ 1.0 Points A coin is flipped 30 times. What is the probability of getting exactly 15 heads? Round answer to
Part 2 of 6 - Contingency Tables 1.0/ 1.0 Points Question 6 of 20 1.0/ 1.0 Points The table of data obtained from shows hit information for four well known baseball players. Suppose that one hit from the table is randomly selected. NAME Single Double Triple Home Run TOTAL HITS Babe Ruth 1,517 506 136 714 2,873
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