Mathematics, 22.09.2021 22:20 Matseleng3775
Race organizers want to survey the participating runners on the quality of the running course. Which of the
following uses systematic random sampling?
Select the first 15 finishers and the last 15 finishers to take the survey.
Randomly select 15% of the male participants and 15% of the female participants.
Select the 5th finisher (with the number 5 being randomly chosen) to survey, then survey every 15th finisher after
that.
Sort all of the runners' names alphabetically, then randomly choose 2 letters and survey all participants whose
last name begins with one of those letters.
Answers: 2
Mathematics, 21.06.2019 19:00
How can you tell when x and y are not directly proportional?
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If y varies directly as x2 and y=6 when x=6, find the constant of variation.
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[15 points]find the quotient with the restrictions. (x^2 - 2x - 3) (x^2 + 4x + 3) ÷ (x^2 + 2x - 8) (x^2 + 6x + 8)
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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
Race organizers want to survey the participating runners on the quality of the running course. Which...
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