The Pew Research Center surveyed 1,466 U.S. adults in January, 2021 and asked about their use of social media, online platforms, and messaging apps. Select the correct vocabulary word to match the description. a. 1,466 adults surveyed by Pew Research: Select an answer ✓ b. All U.S. adults: Select an answer ✓ c. Proportion of surveyed adults who use Snapchat: Select an answer ✓ Below is a contingency table outlining the number of surveyed adults who use Snapchat. Use Snapchat Do Not Use Snapchat 410 Under 50 years old 50 years or older Total 246 60 306 750 1160 Total 656 810 1466 Determine the following probabilities. Enter your results as percents rounded to one decimal place. You do not need to include the "%" symbol. Hint: Convert to a percent before rounding! a. What is the probability that a randomly selected participant is 50 years or older and uses Snapchat? % b. What is the probability that a randomly selected participant uses Snapchat given that they are under 50 years old? c. What is the probability that a randomly selected participant uses Snapchat given that they are 50 years or older? % Based on the probabilities above, what might you hypothesize about Snapchat use among U.S. adults?

Big Ideas Math A Bridge To Success Algebra 1: Student Edition 2015
1st Edition
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:HOUGHTON MIFFLIN HARCOURT
Chapter11: Data Analysis And Displays
Section11.4: Two-ways Tables
Problem 8E
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Question
The Pew Research Center surveyed 1,466 U.S. adults in January, 2021 and asked about their use of social
media, online platforms, and messaging apps.
Select the correct vocabulary word to match the description.
a. 1,466 adults surveyed by Pew Research: Select an answer ✓
b. All U.S. adults: Select an answer ✓
c. Proportion of surveyed adults who use Snapchat: Select an answer ✓
Below is a contingency table outlining the number of surveyed adults who use Snapchat.
Use Snapchat Do Not Use Snapchat
410
Under 50 years old
50 years or older
Total
246
60
306
750
1160
Total
656
810
1466
Determine the following probabilities. Enter your results as percents rounded to one decimal place. You do
not need to include the "%" symbol. Hint: Convert to a percent before rounding!
a. What is the probability that a randomly selected participant is 50 years or older and uses Snapchat?
%
b. What is the probability that a randomly selected participant uses Snapchat given that they are under
50 years old?
%
c. What is the probability that a randomly selected participant uses Snapchat given that they are 50
years or older?
%
Based on the probabilities above, what might you hypothesize about Snapchat use among U.S. adults?
Transcribed Image Text:The Pew Research Center surveyed 1,466 U.S. adults in January, 2021 and asked about their use of social media, online platforms, and messaging apps. Select the correct vocabulary word to match the description. a. 1,466 adults surveyed by Pew Research: Select an answer ✓ b. All U.S. adults: Select an answer ✓ c. Proportion of surveyed adults who use Snapchat: Select an answer ✓ Below is a contingency table outlining the number of surveyed adults who use Snapchat. Use Snapchat Do Not Use Snapchat 410 Under 50 years old 50 years or older Total 246 60 306 750 1160 Total 656 810 1466 Determine the following probabilities. Enter your results as percents rounded to one decimal place. You do not need to include the "%" symbol. Hint: Convert to a percent before rounding! a. What is the probability that a randomly selected participant is 50 years or older and uses Snapchat? % b. What is the probability that a randomly selected participant uses Snapchat given that they are under 50 years old? % c. What is the probability that a randomly selected participant uses Snapchat given that they are 50 years or older? % Based on the probabilities above, what might you hypothesize about Snapchat use among U.S. adults?
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