Best answer gets

for how many hours does each student at bryan middle school sleep?

yes, it specifies the population
no, it does not specify the population
yes, it anticipates enough variability in responses
no, it does not anticipate enough variability in responses

Arefrigeration system at your company uses temperature sensors fixed to read celsius (°c) values, but the system operators in your control room understand only the fahrenheit scale. you have been asked to make a fahrenheit (°f) label for the high temperature alarm, which is set to ring whenever the system temperature rises above –10°c. what fahrenheit value should you write on the label

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If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).