Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 76 people in the 18-21 age bracket and finds that 65 of them respond and 11 refuse to respond. When 275 people in the 22-29 age bracket are contacted, 253 respond and 22 refuse to respond. Assume that 1 of the 351 people is randomly selected. Find the probability of getting someone in the 18-21 age bracket or someone who refused to respond. Report the answer as a percent rounded to one decimal place accuracy. You need not enter the "%" symbol. P(18-21 or refused) = %
Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 76 people in the 18-21 age bracket and finds that 65 of them respond and 11 refuse to respond. When 275 people in the 22-29 age bracket are contacted, 253 respond and 22 refuse to respond. Assume that 1 of the 351 people is randomly selected. Find the probability of getting someone in the 18-21 age bracket or someone who refused to respond. Report the answer as a percent rounded to one decimal place accuracy. You need not enter the "%" symbol. P(18-21 or refused) = %
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 76 people in the 18-21 age bracket and finds that 65 of them respond and 11 refuse to respond. When 275 people in the 22-29 age bracket are contacted, 253 respond and 22 refuse to respond. Assume that 1 of the 351 people is randomly selected. Find the probability of getting someone in the 18-21 age bracket or someone who refused to respond.
Transcribed Image Text:Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A
pollster contacts 76 people in the 18-21 age bracket and finds that 65 of them respond and 11 refuse to
respond. When 275 people in the 22-29 age bracket are contacted, 253 respond and 22 refuse to respond.
Assume that 1 of the 351 people is randomly selected. Find the probability of getting someone in the 18-21
age bracket or someone who refused to respond.
Report the answer as a percent rounded to one decimal place accuracy. You need not enter the "%" symbol.
P(18-21 or refused) =
%
(Hint: It might be helpful to organize the data into a table first.)
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