subject
Mathematics, 01.07.2020 16:01 shoobywee

Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A pollster contacts 82 people in the 18-21 age bracket and finds that 70 of them respond and 12 refuse to respond. When 296 people in the 22-29 age bracket are contacted, 272 respond and 24 refuse to respond. Assume that 1 of the 378 people is randomly selected. Find the probability of getting someone in the 22-29 age bracket or someone who agreed to respond.

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 16:40
Which of the following is the correct equation for this function? a. y= (x+4)(x+2) b. y=x^2+ 3x – 2 c. y+ 2 = – 2(x+3)^2 d. y+ 2 = 2(x+3)^2
Answers: 1
question
Mathematics, 22.06.2019 00:10
Is the number 128.439 a rational number
Answers: 2
question
Mathematics, 22.06.2019 00:20
Maria solved an equation as shown below. what is the solution to maria’s equation?
Answers: 1
question
Mathematics, 22.06.2019 00:30
1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?
Answers: 2
You know the right answer?
Pollsters are concerned about declining levels of cooperation among persons contacted in surveys. A...
Questions
question
Mathematics, 22.07.2019 00:32
question
Mathematics, 22.07.2019 00:32
Questions on the website: 13722367