Standard Deviation and Outliers

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

• 16
• 98
• 84
• There is no median.

Find the First Quartile Q1 of the following numbers:

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

• 72

• 88

• 94

• There is no Lower Quartile.

Find the Third Quartile Q3 of the following numbers:

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

• 72

• 88

• 94

• There is no Upper Quartile.

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

• 78
• 22
• 16
• There is no IQR.

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.

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

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

Find the outlier in the set of data 
92, 88, 106, 169, 76, 72, 67, 10, 115, 73, 111, 59 

• 169
• 115, 169
• 111, 169
• 10, 169

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.

Find the outlier in the set of data

10, 59, 67, 72, 73, 76, 88, 92, 106, 111, 115, 169

• 169

• 115, 169

• 111, 169

• 10, 169