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Outlier Rule

Authored by Barbara White

Mathematics

9th - 10th Grade

Outlier Rule
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10 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

16
98
84
There is no median.

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find the First Quartile Q1 of the following numbers:

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

72

88

94

There is no Lower Quartile.

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Find the Third Quartile Q3 of the following numbers:

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

72

88

94

There is no Upper Quartile.

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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

78
22
16
There is no IQR.

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Use the 1.5 IQR rule to determine if there are any outliers for the following numbers:
84, 88, 72, 74, 98, 16, 94 

Yes, 16 is an outlier.
Yes, 33 is an outlier.
Yes, 98 is an outlier.
There are no numbers less than 39 or greater than 124, therefore there are no outliers.

6.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Using the information below and the 1.5(IQR) rule, identify which of the following is NOT an outlier:

Q1 = 53

Q2 = 55

Q3=61

73

40

80

73.5

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

Using the information below and the 1.5(IQR) rule, identify which of the following IS an outlier:

Q1 = 3

Q2 = 7

Q3 = 12

22

25.5

-8.5

26

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