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## Statistics and probability

### Course: Statistics and probability>Unit 3

Lesson 1: Measuring center in quantitative data

# Choosing the "best" measure of center

Mean and median both try to measure the "central tendency" in a data set. The goal of each is to get an idea of a "typical" value in the data set. The mean is commonly used, but sometimes the median is preferred.

### Part 1: The mean

A golf team's 6 members had the scores below in their most recent tournament:
70, comma, 72, comma, 74, comma, 76, comma, 80, comma, 114
problem a
Calculate the mean score.
mean =

problem b
What is a correct interpretation of the mean score?

### Part 2: The median

problem a
Find the median score.
As a reminder, here are the scores: 70, comma, 72, comma, 74, comma, 76, comma, 80, comma, 114
median =

problem b
What is a correct interpretation of the median score?