Measures of Variation

Which of the following is used to describe the distribution of the data?

• Outlier

• Range

• Measures of Variation

• Interquartile Range (IQR)

Tags

CCSS.6.SP.B.5C

CCSS.HSS.ID.A.3

What 5 items are found when finding the Measures of Variation?

• mean, median, mode, range, IQR

• median, first quartile, third quartile, range, mode

• median, first quartile , third quartile, IQR, range

• mode, IQR, range, mean, first quartile

Tags

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

Tags

CCSS.6.SP.B.5C

How do you find the Interquartile Range?

• divide the 3rd quartile (Q3) by the 1st quartile

• subtract the biggest number by the smallest number

• divide the biggest number by the smallest number

• subtract the 3rd quartile (Q3) by the 1st quartile (Q1)

Tags

CCSS.6.SP.B.5C

To find the interquartile range (IQR)...

• Q1 - Q3

• Q3 - Q2

• Q3 - Q1

• Q2 - Q1

Tags

CCSS.6.SP.B.5C

Find the Lower Quartile (Q1) of the following numbers:

84, 88, 72, 74, 98, 16, 94

• 72

• 88

• 94

• There is no Lower Quartile.

Tags

CCSS.6.SP.B.5C

Find the Upper Quartile (Q3) of the following numbers:

84, 88, 72, 74, 98, 16, 94

• 72

• 88

• 94

• There is no Upper Quartile.

Tags

CCSS.6.SP.B.5C

Find the IQR of the following numbers:
84, 88, 72, 74, 98, 16, 94 

• 78
• 22
• 16
• There is no IQR.

Tags

CCSS.7.EE.B.3

Find the 1st (Q1) , 2nd (Median), and 3rd (Q3) quartile of the data set:

4, 2, 1, 3, 13, 7, 11,15

• 1st: 3, 2nd: 6, 3rd: 14

• 1st: 13, 2nd: 5.5, 3rd: 2.5

• 1st: 2.5, 2nd: 5.5, 3rd: 12

• 1st: 14, 2nd: 6, 3rd: 3

Tags

CCSS.6.SP.B.5C

What is the IQR of this data set?

37, 42, 48, 51, 52, 53, 54, 54, 55

• 5

• 6

• 8

• 9

Tags

CCSS.7.EE.B.3