Calculate Measure of Center, IQR, Standard Deviation

The data set below has an outlier of 42.
2, 5, 12, 15, 19, 4, 6, 11, 16, 18, 12, 12, 42
What effect does removing the outlier have on the distribution of the data?

• The mean will decrease
• The median will decrease
• The mean will increase
• The median will increase

What is the maximum value?

• 58
• 66
• 64
• 60

What is the interquartile range (IQR)?

• 4
• 64
• 60
• 8

Which car club has the higher median?

• Cruisers
• Car Hops

Which is true?

• Mean < Median

• Mean = Median

• Mean > Median

Which is true?

• Mean < Median

• Mean = Median

• Mean > Median

The number of miles that Jenna cycled each week for a 7-week period is shown: 
36, 42, 28, 52, 48, 36, 31 
What is the median number of miles Jenna cycled?

• 24
• 36
• 39
• 52

Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the sample standard deviation of Ervin's scores?

• 511.33

• 22.61

• 438.48

• 20.94

In a population of five university students with GPAs of 2.5, 2.3, 1.7, 1.4, and 1.1, a sample of three students are considered. What would be the standard deviation of the resulting sampling distribution?

• 0.53

• 0.41

• 0.35

• 0.22

Calculate the mean of the data 38, 66, 88, 90

• 52

• 77

• 70.5

• 18.5