Histograms, Boxplots and Measures of Spread

Which interval represents the most number of students?

• 0-9

• 10-19

• 20-29

• 30-39

Which interval has 3 students?

• 0-9

• 10-19

• 20-29

• 30-39

How many students went to a pool less than 10 times last summer?

• 0

• 3

• 4

• 5

Represent the set of data in a box plot.

10, 8, 9, 7, 10, 12, 14, 14, 10, 16

• 
• 
• 
• 

Choose the histogram that represents number of points scored in each basketball game

28, 16, 38, 44, 21, 38, 35, 48, 33, 29, 37, 39, 18, 38, 42, 37, 32

• 
• 
• 
• 

Describe the shape of the distribution.

• The shape of the distribution is not symmetric. There are no outliers.

• The shape of the distribution is not symmetric. There is an outlier.

• The shape of the distribution is symmetric. There are no outliers.

• The shape of the distribution is symmetric. There is an outlier.

Choose the appropriate measures to describe the center and spread of distribution.

• median and interquartile range because the distribution is not symmetric.

• median and interquartile range because the distribution is symmetric.

• median and the outlier because the distribution is symmetric.

• median and the outlier because the distribution is not symmetric.

Describe the center and spread of the distribution using the appropriate measures.

• The median is 3. The first quartile is 1. The data are centered around 2 television sets. The spread of the data around the center is 10 – 0, or 10 television sets.

• The median is 3. The first quartile is 1. The data are centered around 2 television sets. The spread of the data around the center is 3 – 1, or 2 television sets.

• The median is 2. The first quartile is 1. The data are centered around 2 television sets. The spread of the data around the center is 10 – 0, or 10 television sets.

• The median is 2. The first quartile is 1. The data are centered around 2 television sets. The spread of the data around the center is 3 – 1, or 2 television sets.

Determine the median.

277, 448, 279, 334, 132, 599, 237, 251, 183, and 191

• 251

• 264

• 277

• 528

Determine the first and third quartiles and the interquartile range.

277, 448, 279, 334, 132, 599, 237, 251, 183, and 191

• 191, 334, 96

• 191, 334, 133

• 237, 448, 211

• 191, 334, 143