Chapter 5 Stats

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

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

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 tomorrow)

• 55

• 11

• 5.9

• 5.3

If a number that is far away from the mean is added to a data set, how does this affect standard deviation?

• increase

• decrease

• stay the same

• both increase and decrease

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:
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

What is the overall shape of the graph?

• Approximately Symmetrical

• Skewed left

• Skewed right

The frequency table shows the number of inning pitched by Clayton Kershaw, in his 24 starts this season.  Find the mean and standard deviation of the data
(Hint:  Set up 2 lists on your calculator)

• mean = 6, s.d. = 1.3

• mean = 5.5, s.d. = 2.4

• mean = 7, s.d. = 1

• mean = 6.5, s.d. = 1.6

The data from Kobe Bryant's final 20 games is shown: 
22, 15, 13, 5, 12, 26, 14, 20, 17, 28, 17, 5, 2, 34, 6, 17, 14, 35, 13, 60
Choose the BEST description of the distribution (SOCS)

• Unimodal, Skewed Right, Outlier at 60, Center at 16, Range of 58 points, IQR of 10.5 points

• Unimodal, Skewed Right, Outlier at 60, Center at 18.8, Range of 58 points, standard deviation of 13.3 points

• Unimodal, Skewed Left, Outlier at 60, Center at 16, Range of 58 points, IQR of 10.5 points

• Unimodal, Symmetric, Center at 16, Range of 58 points, IQR of 10.5 points