Honors Statistics: Chapter 1 Test Review

Mr. Ireland bowled 12 games last weekend. His scores were: 155, 165, 138, 172, 127, 193, 142, 180, 201, 176, 199, 100 What is the mean (x̄) of Mr. Ireland's scores? (Make sure you can calculate this by hand)

• 150.6

• 140

• 168.5

• 162.3

Mr. Ireland bowled 12 games last weekend. His scores were: 155, 165, 138, 172, 127, 193, 142, 180, 201, 176, 199, 100 What is the median of Mr. Ireland's scores? (Make sure you can calculate this by hand)

• 150.6

• 140

• 168.5

• 162.3

Mr. Ireland bowled 12 games last weekend. His scores were: 155, 165, 138, 172, 127, 193, 142, 180, 201, 176, 199, 100. Which measure of center - the mean or the median - best describes a typical bowling game score for Mr. Ireland?

• The median, because the graph is slightly skewed to the left.

• The median, because the graph is roughly symmetric

• The mean, because the graph is slightly skewed to the left

• The mean, because the graph is roughly symmetric

Here are the winning margins of victory for every NFL game played in Week 1 of the 2017 season:  
15, 9, 6, 20, 3, 12, 8, 13, 22, 37, 8, 20, 16, 10, 3
What is the best measure of center and spread for this data?  (Make sure you can explain why)

• Center: Median
  Spread:  St. Deviation
• Center: Mean
  Spread:  St. Deviation
• Center:  Median
  Spread:  IQR
• Center:  Median
  Spread:  Range

Here are the winning margins of victory for every NFL game played in Week 1 of the 2017 season:  
15, 9, 6, 20, 3, 12, 8, 13, 22, 37, 8, 20, 16, 10, 3
Find the Upper Quartile (Q3) of this data.  Try this by "Hand", as you will be required to do so on tomorrow's quiz. 

• 20
• 12
• 8
• 15

Find the standard deviation for the data given:

5, 10, 7, 13, 20

(I encourage you to do this by "Hand" and not your calculator, as you will be asked to do this on the quiz)

• 55

• 11

• 5.9

• 5.3

Using the information below, identify which of the following is an outlier:
Q1 = 3
Median = 7
Q3 = 12

• 22
• 25.5
• -8.5
• 26

Using the information below, identify which of the following is NOT an outlier:
Q1 = 53
Median = 55
Q3=61

• 73
• 40
• 80
• 73.5

Find the median of the stem and leaf plot shown. 

• Median = 35
• Median = 36
• Median = 41
• Median = 38.5

The following are the number of pitches thrown by Clayton Kershaw from a 24 game sample in 2017:

84, 100, 100, 97, 90, 104, 118, 85, 89, 104, 109, 103, 95, 101, 112, 103, 93, 117, 99, 103, 21, 70, 86, 91

Find the IQR.

• 89.5

• 99.5

• 14

• 10.5