CHAPTER 12
SECTION 12.1
Central Tendency and Dispersion
MINI LESSON
Central Tendency and Dispersion
Measures of central tendency describe the center of a data set.
Common measures include the mean and median.
Measures of dispersion describe how spread out the data are.
Standard deviation and interquartile range are common measures of spread.
Question 1
The geometry test scores for Andrea and Joe are shown in the table below. Which statement about their test scores is correct?
Question 2
The table below shows the highest temperatures recorded in August for several years in one town. The interquartile range of these data is
Answer Key
Central Tendency and Dispersion
- 1.D. The mean of Joe's test scores is higher than Andrea's, but Andrea's standard deviation is higher than Joe's.
- 2.C. 11