You are randomly selecting a sample of 12 participants for your research. The probability of choosing a woman from the population is .70. a. What is the probability of getting exactly 9 women? b. What is the probability of getting at least 9 women? c. What is the probability of getting 4 men?

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter9: Counting And Probability
Section: Chapter Questions
Problem 14T: An unbalanced coin is weighted so that the probability of heads is 0.55. The coin is tossed ten...
icon
Related questions
Question

You are randomly selecting a sample of 12 participants for your research. The probability of choosing a woman from the population is .70.
a. What is the probability of getting exactly 9 women?
b. What is the probability of getting at least 9 women?
c. What is the probability of getting 4 men?

Expert Solution
Step 1

Let,

x be no of women 

given.

n=12

P(women) p=0.70

q=1-p=0.30

 

trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps

Blurred answer
Knowledge Booster
Point Estimation, Limit Theorems, Approximations, and Bounds
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
College Algebra
College Algebra
Algebra
ISBN:
9781305115545
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
Algebra and Trigonometry (MindTap Course List)
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:
9781305071742
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
College Algebra
College Algebra
Algebra
ISBN:
9781337282291
Author:
Ron Larson
Publisher:
Cengage Learning