1. Module 8 Test Review

2. Find the following from the set of data: 6, 23, 8, 14, 21, 7, 16, 8  Five Number Summary: Answer: Min 6, Lower Quartile 7.5, Median 11, Upper Quartile 18.5, Max 23  Mean:  Answer 12.875  Median:  Answer 11  Mode:  Answer 8

3. From the box plot below, identify the following:  5-Number Summary  Answer: Min-20, Q1-30, Med-62, Q3-70, Max-93  IQR  Answer: 70-30 = 40, 50% of the data falls within the IQR

4. Describe Quantitative and Categorical Data  Quantitative:  Data can be counted  Can be represented in a histogram or box-plot  Categorical Data:  Data is put in categories, can’t be counted  Data is represented by a two-way frequency table

5. Describe the distribution for histogram on the left:  Shape:  Answer: Unimodal (400- 410) skewed to the right  Spread:  Answer: Not Normal, No Outliers, High Variability (400 – 480)  Center:  Mode 400-410, Median 420- 430, Mean probably about 430. Median or mean would be most appropriate measure of center

6. Given the distribution table on the left, complete the relative frequency of row table. (Round to nearest tenth of percent) Left Handed Batters Right Handed Batters Total Batters Hits7573148 Recorded an Out 163143306 Total official at Bats 238216454 Left Handed Batters Right Handed Batters Total Batters Hits50.7%49.3%100% Recorded an Out 53.3%46.7%100% Total official at Bats 52.4%47.6%100%

7. Given the distribution table on the left, complete the relative frequency of column table. (Round to nearest tenth of percent) Left Handed Batters Right Handed Batters Total Batters Hits7573148 Recorded an Out 163143306 Total official at Bats 238216454 Left Handed Batters Right Handed Batters Total Batters Hits31.5%33.8% 32.6% Recorded an Out 68.5%66.2%67.4% Total official at Bats 100%

8. Provide evidence on which handed batters are better hitters.  Left Handed Batters:  Had a higher percentage of the total hits 50.7% to 49.3%  Right Handed Batters:  Recorded less percentage of total outs 46.7% to 53.3%  Recorded a hit 33.8% of at bats compared to lefty’s 31.5% of at bats  Recorded an out 66.2% of the time compared to lefty’s 68.5%  According to given data, right handed batters are better hitters.