A researcher asks participants to estimate the calories they consume in a meal.The researcher records the following estimates: 450,426,310,500,and 220.If the researcher removes the estimate of 220 (perhaps because the participant drops out of the study),then the value of the mean will
A) decrease.
B) increase.
C) remain the same.
D) become negative.

Question

Quizplus · Accepted Answer

The mean is calculated by adding up all the values and dividing by the number of values. By removing the smallest value (220), the remaining values are higher on average. Therefore, the mean will increase.

A Researcher Asks Participants to Estimate the Calories They Consume