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please solve part b and part d only

please solve part b and part d only

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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Question

please solve part b and part d only

A recent poll has suggested that 64 % of Canadians will be spending money - decorations, halloween treats, etc. - to celebrate Halloween this year. 22 Canadians are randomly chosen, and the number that will be spending money to celebrate Halloween is to be counted. This count is represented by the random variable X. Part (a) Compute the probability that 14 of these Canadians indicate they will be spending money to celebrate Halloween. P(X = 14) = 0.1745 (use four decimals in your answer) Part (b) Compute the probability that between 7 and 16 of these Canadians, inclusive, indicate they will be spending money to celebrate Halloween. P(7 < X < 16) = 0.8023 (use four decimals in your answer) Part (c) How many of the 22-Canadians randomly chosen would you expect to indicate they will be spending money to celebrate Halloween? Compute the standard deviation as well. E(X) = µx= 14.08 (use two decimals in your answer) SD(X)=ox= 2.25 (use two decimals in your answer) Part (d) Compute the probability that the 13-th Canadian random chosen is the 9-th to say they will be spending money to celebrate Halloween. 0.2163 (use four decimals in your answer)
Transcribed Image Text:A recent poll has suggested that 64 % of Canadians will be spending money - decorations, halloween treats, etc. - to celebrate Halloween this year. 22 Canadians are randomly chosen, and the number that will be spending money to celebrate Halloween is to be counted. This count is represented by the random variable X. Part (a) Compute the probability that 14 of these Canadians indicate they will be spending money to celebrate Halloween. P(X = 14) = 0.1745 (use four decimals in your answer) Part (b) Compute the probability that between 7 and 16 of these Canadians, inclusive, indicate they will be spending money to celebrate Halloween. P(7 < X < 16) = 0.8023 (use four decimals in your answer) Part (c) How many of the 22-Canadians randomly chosen would you expect to indicate they will be spending money to celebrate Halloween? Compute the standard deviation as well. E(X) = µx= 14.08 (use two decimals in your answer) SD(X)=ox= 2.25 (use two decimals in your answer) Part (d) Compute the probability that the 13-th Canadian random chosen is the 9-th to say they will be spending money to celebrate Halloween. 0.2163 (use four decimals in your answer)
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