Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 80 people in the 18-21 age bracket and finds that 68 of them respond and 12 refuse to respond. When 260 people in the 22-29 age bracket are contacted, 240 respond and 20 refuse to respond. Assume that 1 of the 340 people is randomly selected. Find the probability of getting someone in the 22-29 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(22-29 or refused) = (Hint: It might be helpful to organize the data into a table first.)

Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 80 people in the 18-21 age bracket and finds that 68 of them respond and 12 refuse to respond. When 260 people in the 22-29 age bracket are contacted, 240 respond and 20 refuse to respond. Assume that 1 of the 340 people is randomly selected. Find the probability of getting someone in the 22-29 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(22-29 or refused) = (Hint: It might be helpful to organize the data into a table first.)

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section11.8: Probabilities Of Disjoint And Overlapping Events

Problem 2C

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