Prealgebra Distribution

What is the first quartile value (1Q) for the listed values below?

• 7

• 13

• 8

• 9

• 6

What is the third quartile value (3Q) for the listed values below?

• 17

• 16

• 18

• 9

• 15

Which dot plot would be considered bell shaped?

• a

• b

• neither

• both 1a & 1b are bell shaped

Which dot plot has a larger mean?

• 1a

• 1b

• they have the same mean

• the mean cannot be determined in these dot plots

Which dot plot has a larger standard deviation?

• 1a

• 1b

• they have the same standard deviation

• the standard deviation cannot be determined in these dot plots

Which dot plot has a smaller standard deviation?

• 3a

• 3b

• they have the same standard deviation

• the standard deviation cannot be determined in these dot plots

What is the interquartile range?

• 4

• 6

• 2

• 8

Which measure of center would be most appropriate for the following diagram?

• Mean

• Median

• IQR

• Standard Deviation

Does this plot contain an outlier?

• No

• Yes

Which dot plot would be considered bell shaped?

• 2a

• 2b

• neither

• both 2a & 2b are bell shaped