Homework Packet Week #3

Transcription

1 Lesson 8.1 Choose the term that best completes statements # A data distribution is if the peak of the data is in the middle of the graph. The left and right sides of the graph are nearly mirror images of each other. dot plot five number summary data distribution symmetric discrete data skewed left histogram skewed right frequency box-and-whisker plot bin continuous 1. A(n) is a graphical way to display quantitative data using vertical bars. 2. A data distribution is if the peak of the data is to the left side of the graph with only a few data points to the right side of the graph. 3. are data that have only a finite number of values or data that can be counted. 11. The number of data values included in a given bin of a data set is called. 12. The bar width in a histogram that represents an interval of data is often referred to as a. Construct the graphical display for each given data set. Describe the distribution of the data. 13. Construct a dot plot to display the number of items purchased by a number of randomly chosen customers at a toy store. The data are 2, 4, 3, 7, 12, 3, 1, 5, 6, 3, 4, 2, 4, 3, 7, 14, 10, 3, 5, and A(n) displays the data distribution based on a five number summary. 5. The overall shape of a graph which shows the way in which data are spread out or clustered together is called the. 6. are data which can take any numerical value within a range. 7. A data distribution is if the peak of the data is to the right side of the graph with only a few data points to the left side of the graph. 14. Construct a box-and-whisker plot to display the number of pets owned by a number of randomly chosen students. The data are 2, 0, 5, 1, 2, 1, 0, 8, 4, 3, 9, 1, 2, 3, and A(n) is a graph that shows how discrete data are distributed using a number line. 9. For a set of data, the consists of the minimum value, the first quartile, the median, the third quartile, and the maximum value.

2 15. Construct a box-and-whisker plot to display the scores on a recent science test. The data are 90, 95, 100, 70, 85, 65, 90, 80, 65, 70, 75, 80, 85, 80, 60, 80, 75, and Construct a histogram to display the scores on a recent English quiz. The data are 18, 45, 20, 32, 9, 35, 49, 28, 25, 19, 5, 30, 22, 24, and 14. Use as the first interval. 16. Construct a histogram to display the circumferences of the pumpkins in the Jeffiers family pumpkin crop. The data are 22.1, 35.6, 15.8, 36.9, 40.0, 28.5, 38.4, 20.4, 25.8, 34.1, 39.9, 42.2, 24.3, 22.7, 19.8, 27.9, 22.2, 34.3, 40.4, 20.6, 38.2, and Use as the first interval. Analyze the given dot plot which displays the number of home runs by each of the girls on the softball team this season. Use the dot plot to answer each question. Softball Team Home Runs 18. How many players hit more than 1 and fewer than 9 home runs? 19. How many players scored more than 12 home runs?

3 Analyze the given box-and-whisker plot which displays the heights of 40 randomly chosen adults. Use the box-and-whisker plot to answer each question. Heights of 40 Randomly Chosen Adults 23. How many students are represented by the histogram? 24. Describe the distribution of the data in the histogram and explain what it means in terms of the problem situation. 25. How many of the students had an ACT composite score of exactly 25? 20. What is the height range of the middle 50 percent of the surveyed adults? 21. How many of the surveyed adults are exactly 68 inches tall? 22. What percent of the surveyed adults are 68 inches tall or shorter? Lesson 8.2 Create a dot plot of each given data set. Calculate the mean and median. Determine which measure of center best describes each data set. 26. The data are 1, 3, 2, 0, 7, 2, 1, 10, 1, 12, 1, 2, 0, 3, and 4. Analyze the given histogram which displays the ACT composite score of several randomly chosen students. Use the histogram to answer each question. ACT Composite Scores 27. The data are 7, 2, 9, 9, 10, 12, 17, 10, 6, 11, 9, 10, 8, 11, and 8.

4 28. The data are 4, 0, 13, 15, 14, 10, 13, 8, 13, 12, 11, 13, 14, 1, 15, 13, 14, 12, 10, and Determine which measure of center best describes the data in each given data display. Then determine the mean and median, if possible. If it is not possible, explain why not. Average Annual Snowfall in Select U.S. Cities Lesson 8.3 Match each definition to its corresponding term. a. A value calculated using the formula. b. A value calculated by subtracting Q1 from Q3. c. A value calculated using the formula. d. A data value that is significantly greater than or less than the other values in a data set. 32. interquartile range (IQR) 33. outlier 34. lower fence 35. upper fence

5 Calculate the IQR of each given data set. Determine whether there are any outliers in each set and list them. (#36-41) The data are 4, 4, 5, 5, 8, 9, 10, 10, 12, 12, 16, 20, and The data are 0, 3, 10, 16, 16, 18, 20, 21, 22, 24, 25, 25, 27, 30, 35, and The data are 9, 15, 26, 30, 32, 32, 35, 36, 38, 40, 40, 45, and 59.

6 Pe- Name _ riod _