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In Hawaii shark attacks are very rare. Furthermore, about 55% of all shark attacks are serious, but not fatal.+ You are scheduled to give a talk at a local scuba club in Honolulu and want to include a brief statistical profile regarding the most recent six shark attacks, all of which were nonfatal. Let r be the number of nonfatal attacks out of a random sample of six shark attacks. (a) Make a histogram for the probability distribution of r. 0.35 0.30 0.35 P(r) 0.25 0.20 0.15 0.10 0.05 0 01 2 3 4 56 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 01 2 3 5 6 P(r) 0.30 0.25 0.20 0.15 0.10 0.05 0 0 1 2 3 4 56 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 0 1 2 3 4 5 6 r (b) What is the probability all six shark attacks are nonfatal? (Round your answer to three decimal places.) (c) What is the probability that three or more of the six shark attacks are nonfatal? (Round your answer to three decimal places.) (d) What is the expected number of nonfatal shark attacks out of the six? What is the standard deviation of the r-probability distribution? (Round your answer to three decimal places.)

In Hawaii shark attacks are very rare. Furthermore, about 55% of all shark attacks are serious, but not fatal.+ You are scheduled to give a talk at a local scuba club in Honolulu and want to include a brief statistical profile regarding the most recent six shark attacks, all of which were nonfatal. Let r be the number of nonfatal attacks out of a random sample of six shark attacks. (a) Make a histogram for the probability distribution of r. 0.35 0.30 0.35 P(r) 0.25 0.20 0.15 0.10 0.05 0 01 2 3 4 56 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 01 2 3 5 6 P(r) 0.30 0.25 0.20 0.15 0.10 0.05 0 0 1 2 3 4 56 0.35 0.30 0.25 0.20 0.15 0.10 0.05 0 0 1 2 3 4 5 6 r (b) What is the probability all six shark attacks are nonfatal? (Round your answer to three decimal places.) (c) What is the probability that three or more of the six shark attacks are nonfatal? (Round your answer to three decimal places.) (d) What is the expected number of nonfatal shark attacks out of the six? What is the standard deviation of the r-probability distribution? (Round your answer to three decimal places.)

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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In Hawaii shark attacks are very rare. Furthermore, about 55% of all shark attacks are serious, but not fatal.t You are scheduled to give a talk at a local scuba club in Honolulu and want to include a brief statistical profile regarding the most recent six shark attacks, all of which were nonfatal. Let r be the number of nonfatal attacks out of a random sample of six shark attacks. (a) Make a histogram for the probability distribution of r. 0.35 0.35 0.30 0.30 0.25 0.25 3 0.20 * 0.20 0.15 0.15 0.10 0.10 0.05 0.05 3 6. 2 4 0.35 0.35 0.30 0.30 0.25 0.25 0.20 0.20 0.15 0.10 0.10 0.05 0.05 3 6. 3 6. (b) What is the probability all six shark attacks are nonfatal? (Round your answer to three decimal places.) (c) What is the probability that three or more of the six shark attacks are nonfatal? (Round your answer to three decimal places.) (d) What is the expected number of nonfatal shark attacks out of the six? What is the standard deviation of the r-probability distribution? (Round your answer to three decimal places.) (4)d
Transcribed Image Text:In Hawaii shark attacks are very rare. Furthermore, about 55% of all shark attacks are serious, but not fatal.t You are scheduled to give a talk at a local scuba club in Honolulu and want to include a brief statistical profile regarding the most recent six shark attacks, all of which were nonfatal. Let r be the number of nonfatal attacks out of a random sample of six shark attacks. (a) Make a histogram for the probability distribution of r. 0.35 0.35 0.30 0.30 0.25 0.25 3 0.20 * 0.20 0.15 0.15 0.10 0.10 0.05 0.05 3 6. 2 4 0.35 0.35 0.30 0.30 0.25 0.25 0.20 0.20 0.15 0.10 0.10 0.05 0.05 3 6. 3 6. (b) What is the probability all six shark attacks are nonfatal? (Round your answer to three decimal places.) (c) What is the probability that three or more of the six shark attacks are nonfatal? (Round your answer to three decimal places.) (d) What is the expected number of nonfatal shark attacks out of the six? What is the standard deviation of the r-probability distribution? (Round your answer to three decimal places.) (4)d
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