1. 1. What is the first step in finding the median in a set of data? Write the numbers in order from least to greatest. 2.Find the mean using this data: 0, 10, 20, 0,10, and 5 0 + 10 + 20 + 0 + 5, 10 = 35 45/6 = 7.50

2. 3. Make a stem and leaf plot using the data: 42, 36, 40, 31, 29, 49, 21, 28, 52, 27, 22, 35, 30, 46, 34, 34

3. 4. Find the range using the data: 18, 20, 56, 47, 30, 18, 21 56 – 18 = 38 5. Find the median using the data: 18, 20, 56, 47, 30, 18, 21 21 18, 18, 20, 21, 30, 47, 56

4. 6.Find the mode using the data: 18, 20, 56, 47, 30, 18, 21 1818 18, 20, 56, 47, 30, 18, 21 7. Find the mean using the data: 8, 8, 7, 8 and 9 8 + 8 + 7 + 8 + 9 = 40 40/5 = 8

5. 8. Make a frequency table using the data below (going by equal intervals of 9): 33, 35, 23, 39, 23, 24, 34, 21, 57, 45, 57, 60, 45, 24, 31, 42, 61, 45, 35, 38 IntervalsTallyFrequency 20 – 29||||5 30 - 39|||| ||7 40 - 49||||4 50 – 59||2 60 – 69II2

6. 9. Make a line plot using the data below: 2, 0, 1, 2, 1, 1, 6, 5, 5, 2, 5, 4, 3, 4, 4, 4, 3, 3, 2, 2, 2, 11.Find the median of the data: 22, 14, 11, 17 11,14, 17, 22  14 + 17 = 31  31/2 =15.5

7. 10. Make a histogram using the data below (by equal intervals of 4) 4, 7, 9, 12, 3, 6, 10, 15, 12, 5, 18, 2, 5, 10, 7, 12, 11, 15 11. Which measure of central tendency gives you the average? Mean

8. 12. There are 5 whole numbers in a data set. The mean of the data is 10. The median and mode are both 9. The least number in the data set is 7, and the greatest is 14. What are the numbers in the data set? 7, 9, 9, 11, and 14 13. Which hockey team had the greatest difference between the number of games won and lost? New York Islanders 14. How do you know the mode of a data set by looking at a bar graph? The mode has two or more bars on the graph with the same height.

9. 15. Which city’s temperature data has a mean of 68°F? 16. What type of graph would be used to best describe the most appropriate way to show the height of a sunflower plant every week for one month? Line Graph 17. What kind of data would you obtain from this question: categorical or numerical? What color are your eyes? Categorical 18. What kind of data would you obtain from this question: categorical or numerical? How many movies have you watched in the last week? Numerical

10. Box and Whisker Plots You must answer the following questions on another sheet of paper. Use the data for Questions 19 - 21. 24, 20, 18, 25, 22, 32, 30, 29, 35, 30, 28, 24, 38 19. Create a box-and-whisker plot for the data. 20. What is the lower quartile and the upper quartile? 21. What is the interquartile range?

11. 22. Compare the box-and-whisker plots below. Which has the greater interquartile range? 18 20 22 24 26 28 30 32 34 36 38 40

12. Scatterplots 23. Write positive, negative, or no correlation to describe each relationship. Explain