4. 66% of Americans support death penalty (Gallup, 2004). Seven people are randomly selected. Let the random variable X be the number of Americans who support death penalty. a. Explain why X is a binomial random variable. b. What is the probability that exactly 5 people selected support death penalty? 8 c. What is the probability that at least 4 people selected are against death penalty?

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter6: Ratio, Proportion, And Probability
Section6.7: Probability And Odds
Problem 2C
icon
Related questions
Question

step by step

no explonation need

4. 66% of Americans support death penalty (Gallup, 2004). Seven people are randomly
selected. Let the random variable X be the number of Americans who support death
penalty.
a. Explain why X is a binomial random variable.
b. What is the probability that exactly 5 people selected support death penalty?
8
c. What is the probability that at least 4 people selected are against death penalty?
Transcribed Image Text:4. 66% of Americans support death penalty (Gallup, 2004). Seven people are randomly selected. Let the random variable X be the number of Americans who support death penalty. a. Explain why X is a binomial random variable. b. What is the probability that exactly 5 people selected support death penalty? 8 c. What is the probability that at least 4 people selected are against death penalty?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition…
Holt Mcdougal Larson Pre-algebra: Student Edition…
Algebra
ISBN:
9780547587776
Author:
HOLT MCDOUGAL
Publisher:
HOLT MCDOUGAL
College Algebra
College Algebra
Algebra
ISBN:
9781938168383
Author:
Jay Abramson
Publisher:
OpenStax
College Algebra
College Algebra
Algebra
ISBN:
9781337282291
Author:
Ron Larson
Publisher:
Cengage Learning
College Algebra (MindTap Course List)
College Algebra (MindTap Course List)
Algebra
ISBN:
9781305652231
Author:
R. David Gustafson, Jeff Hughes
Publisher:
Cengage Learning