Question

Data Set B: Speeds Recorded by the State Police 53, 55, 55, 55, 57, 57, 60, 60, 62, 63, 63, 64, 67, 68, 68, 70, 72, 73 Find the mean speed of Data Set B.

Answer 1

I got 62.33

Answer 2

Add them all together and divide by 18.

Answer 3

What value corresponds to the 60th percentile in the following data set?

{12, 28, 35, 42, 47, 49, 50}

Answer 4

A researcher for an airline interviews all of the passengers on five randomly selected flights. Identify which sampling technique is used.