Measures of Variation

When calculating the range of a data set, I need to

• subtract minimum - maximum

• subtract maximum - minimum

• subtract Q₁ - Q₃

• subtract Q₃ - Q₁

• use the 1.5 ( IQR ) rule

Tags

CCSS.6.SP.B.5C

Calculate the interquartile range of the following data

17, 18, 18, 19, 20, 21, 21, 23, 25

• 3
• 4
• 5

  
  

• 8

  
  

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

CCSS.6.SP.A.2

If the standard deviation of a data set is 4, what is the variance?

• 2
• 16
• 4

Tags

CCSS.6.SP.A.3

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

What is the standard deviation for the data given:

5, 10, 7, 12, 0, 20, 15, 22, 8, 2

• 6.89

• 10.1

• 7.26

• 9

What does this symbol represent?

• Standard Deviation

• Variance

• mean

• Interquartile Range

What does this symbol represent?

• Variance

• Standard Deviation

• Range

• Median

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

Tags

CCSS.6.SP.A.3

CCSS.6.SP.B.5

CCSS.6.SP.B.4