Measures of Centers and Variation

Dr. Dre is a dentist. He needs to report on the average number of cavities that his patients have.
1,0,1,5,6,3,4

• 3.33
• 2.85
• 3
• 3.5

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

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.C.7

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Find the median of these numbers:
4,2,7,4,3

• 2
• 5
• 7
• 4

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

The Yankees had the following wins over the last nine years;
89  103  95  97  95  85   84   87  84.
Find the IQR. 

• 14
• 84.5
• 96
• 11.5

Tags

CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

The Yankees had the following wins over the last nine years;
89  103  95  97  95  85   84   87  84.
Find the IQR. 

• 14
• 84.5
• 96
• 11.5

The Mets had the following wins over the last nine years;
89   70   79   77   74   74   79   90   87.
Find the median. 

• 77
• 87
• 79
• 74

Tags

CCSS.7.EE.B.3

A data set can have more than one mode

• True
• False

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

The heights of some students are given.
158cm     172cm      164cm
164cm     167cm      159cm
 What is the range of the heights?

• 13cm
• 14cm
• 164cm
• 330cm

Tags

CCSS.4.MD.B.4

Find the median AND mode of the data.
8, 8, 6, 8, 4, 5, 6

• Median: 6; mode: 4
• Median: 8; mode: 8
• Median: 5; mode: 5
• Median: 6; mode: 8

Find the median, 1st quartile, 3rd quartile, and interquartile range of the data:
28, 46, 25, 76, 18, 25, 47, 83, 44

• Median: 46; Q₁: 27; Q₃: 62; IQR: 37
• Median: 44; Q₁: 29; Q₃: 58; IQR: 32
• Median: 44; Q₁: 25; Q₃: 61.5; IQR: 36.5
• Median: 41.5; Q₁: 28; Q₃: 63; IQR: 36.5