Mean, MAD, IQR, and Variance

Find the mode for the following goals scored by soccer team.
3,   3,   0,   2,   2,   2,   5,   5,   8,   4

• 8
• 4
• 3
• 2

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Find the MAD for following test grades:
100   80   70   90   100

• 30
• 52
• 15
• 10.4

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Mean Absolute Deviation is a measure of _________________________ .

• central tendency
• variation
• average 
• anger

Tags

CCSS.7.EE.B.3

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

• 103
• 96
• 89
• 91

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

What is the variance for the data given:
5, 10, 7, 12, 0, 20, 15, 22, 8, 2

• 47.47
• 102.01
• 52.77
• 81

Tags

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What does variance represent?

• How many different variations are in the data set.

• How the population varies compared to the sample.

• How spread out each data value is from the mean.

• The range, but with a bunch of other stuff going on.

Tags

CCSS.HSS.ID.A.2

CCSS.HSS.ID.A.3

Before you can begin calculating the variance, you must first:

• find the mean

• find the median

• find the mode

• find the range

Tags

CCSS.HSS.ID.A.2

What is the variance of the sample data: 550, 400, 500, 230, and 120?

• 360

• 32,950

• 26,360

• 1,800

Consider the following distribution: 2, 3, 7, 12. What is the variance of this distribution?

• 11

• 13.9

• 15.5

• 14.7