Measures of Center and Variation

What is the mode?

• Number that occurs the most

• The Average

• The difference between the highest and lowest values

• The Number in the middle

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CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the mean?

• The number that occurs the most

• The number in the middle

• The difference between the highest and lowest values

• The Average

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CCSS.6.SP.A.3

CCSS.6.SP.B.5

What is the median?

• The number in the middle

• The difference between the highest and lowest values

• The number that occurs the most

• The average

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CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.5

When finding the median what is the FIRST step?

• Mark off the lowest number

• Mark off the highest number

• Find the Middle

• Arrange the number from Least to Greatest

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CCSS.6.SP.A.3

CCSS.6.SP.B.5

At Donald's Donuts the number of donut holes in a bag can vary. Help Donald find the mode.

12,10,10,10,13,12,11,13,10

• 13

• 12

• 11

• 10

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CCSS.6.SP.A.1

CCSS.6.SP.A.3

CCSS.6.SP.B.5

Find the mean of these numbers:

2, 57, 38, 42, 6

• 29

• 38

• 50

• 145

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CCSS.6.SP.A.3

CCSS.6.SP.B.5

Which dot plot shows more consistency? a or b?

• a

• b

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CCSS.6.SP.A.1

CCSS.6.SP.A.2

CCSS.6.SP.A.3

CCSS.6.SP.B.4

CCSS.6.SP.B.5

How do you find the Interquartile Range?

• divide the 3rd quartile by the 1st quartile

• subtract the biggest number by the smallest number

• divide the biggest number by the smallest number

• subtract the 3rd quartile by the 1st quartile

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CCSS.6.SP.A.3

CCSS.6.SP.B.4

CCSS.6.SP.B.5

What is the outlier in this data set?

{23, 60, 30, 21, 25, 35, 29}

• 35

• 21

• 30

• 60

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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

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CCSS.6.NS.C.7

CCSS.6.SP.A.3

CCSS.6.SP.B.5