Mathematics, 15.04.2020 01:22, skylarsikora22
An opinion poll is to be given to a sample of 90 members of a local gym. The members are first divided into men and women, and then a simple random sample of 45 men and a separate simple random sample of 45 women are taken. What sampling technique is using?
(A) A block design.
(B) A double-blind simple random sample.
(C) A stratified random sample.
(D) A randomized comparative experiment.
Answers: 3
Mathematics, 21.06.2019 16:30, hector87
The label on the car's antifreeze container claims to protect the car between ? 40°c and 125°c. to convert celsius temperature to fahrenheit temperature, the formula is c = 5 over 9 (f ? 32). write and solve the inequality to determine the fahrenheit temperature range at which this antifreeze protects the car. ? 40 > 5 over 9 (f ? 32) > 125; ? 40 > f > 257 ? 40 < 5 over 9 (f ? 32) < 125; ? 40 < f < 257 ? 40 < 5 over 9 (f ? 32); ? 40 < f 5 over 9 (f ? 32) < 125; f < 257
Answers: 2
Mathematics, 22.06.2019 01:50, jetblackcap
Write the point-slope form of an equation of the line through the points (-2, -3) and (-7, 4).
Answers: 1
An opinion poll is to be given to a sample of 90 members of a local gym. The members are first divid...
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