Based on a smartphone​ survey, assume that 57​% of adults with smartphones use them in theaters. In a separate survey of 224 adults with​ smartphones, it is found that 111 use them in theaters. a. If the 57​% rate is​ correct, find the probability of getting 111 or fewer smartphone owners who use them in theaters.

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

Based on a smartphone​ survey, assume that 57​% of adults with smartphones use them in theaters. In a separate survey of 224 adults with​ smartphones, it is found that 111 use them in theaters.

a. If the 57​% rate is​ correct, find the probability of getting 111 or fewer smartphone owners who use them in theaters.
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
College Algebra
College Algebra
Algebra
ISBN:
9781305115545
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
College Algebra
College Algebra
Algebra
ISBN:
9781337282291
Author:
Ron Larson
Publisher:
Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:
9781133382119
Author:
Swokowski
Publisher:
Cengage