Author Question: When working with grouped data, the ________ is the value in the middle of the class and can be ... (Read 89 times)

leo leo · **on:** Jun 24, 2018

When working with grouped data, the ________ is the value in the middle of the class and can be found by taking the average of the endpoints for each class.

A) range
B) midpoint
C) endpoint
D) median

Question 2

According to a recent survey, 38 of U.S. households used only cell phones for their phone service. A random sample of four households was selected. The probability that the first three used only cell phones and the fourth had a landline is ________.

A) 0.034
B) 0.070
C) 0.154
D) 0.195