Range and Standard Deviation

Roger bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Roger's scores?

• 193
• 127
• 60
• 66

Tags

CCSS.6.NS.B.3

All of the below sets have the same mean.

Set 1-Standard Deviation=3.1

Set 2-Standard Deviation=4.9

Set 3-Standard Deviation=1.7

Set 4-Standard Deviation=3.2

Which set of data probably has the points closest to the mean? (least spread out)

• 1

• 2

• 3

• 4

Order the dot plots from least to greatest standard deviation.

• A, D, C, B

• B, C, D, A

• A, D, B, C

• B, C, A, D

Tags

CCSS.HSS.ID.A.1

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

The mean of a data set is 45 and the median of the same data set is 60. In general, which statistic, in this case, is more reliable?

• Mean

• Median

• Both

Which are measures of spread? (Choose all that apply)

• Mean

• Median

• Range

• Standard Deviation

The larger the standard deviation, the

• more spread out the data is

• closer the data is to the mean

• higher the average