Homework Help is Here – Start Your Trial Now!
Math
Statistics
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
See similar textbooks
icon
Related questions
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)
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman
SEE MORE TEXTBOOKS