In the 1984 U.S. presidential election, approximately 60% voted Republican and 40% voted Democratic. Calculate the probability that a random sample would correctly forecast the election winner - that is, that a majority of the sample would be Republicans, if the sample size were: (a) n = 1 (b) n = 3 (c) n = 9 (d) Comment on the probability of a correct forecast changes as the sample size increases.

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question
In the 1984 U.S. presidential election, approximately 60% voted Republican and 40% voted Democratic.
Calculate the probability that a random sample would correctly forecast the election winner - that is, that
a majority of the sample would be Republicans, if the sample size were:
(a) n = 1
(b) n = 3
(c) n = 9
(d) Comment on the probability of a correct forecast changes as the sample size increases.
Transcribed Image Text:In the 1984 U.S. presidential election, approximately 60% voted Republican and 40% voted Democratic. Calculate the probability that a random sample would correctly forecast the election winner - that is, that a majority of the sample would be Republicans, if the sample size were: (a) n = 1 (b) n = 3 (c) n = 9 (d) Comment on the probability of a correct forecast changes as the sample size increases.
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

Blurred answer
Similar questions
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