Mathematics, 29.07.2019 23:00 tsupreme
Suppose that a defined population is all men, and a survey is being conducted. which of these is an example of selection bias? a. excluding women from the selection process of the survey b. including men over 50 in the selection process of the survey c. excluding men over 50 from the selection process of the survey d. including women in the selection process of the survey
Answers: 2
Mathematics, 21.06.2019 19:30
Asurvey of 45 teens found that they spent an average of 25.6 hours per week in front of a screen (television, computer, tablet, phone, based on the survey’s sample mean, which value could be the population mean? 2.3 hours 27.4 hours 75.3 hours 41.5 hours
Answers: 1
Mathematics, 21.06.2019 21:30
If you flip a coin 3 times, what is the probability of flipping heads 3 times? a. p(3 heads) = 3/8 b. p(3 heads) = 1/6 c. p(3 heads) = 1/8 d. p(3 heads) = 1/2
Answers: 2
Mathematics, 21.06.2019 22:00
The sum of the speeds of two trains is 720.2 mph. if the speed of the first train is 7.8 mph faster than the second train, find the speeds of each.
Answers: 1
Suppose that a defined population is all men, and a survey is being conducted. which of these is an...
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