Review Data Analysis Key

Keystone Review Name: KEY Unit 6 Date: _________ Period: _________ Unit 6... Data Analysis and Probability (Keystone Review) Part 6.1 - Tables and Graphs C 1) The graph shows the value of a necklace over many years. What is a reasonable estimate of the value of the necklace in 1982?   [Graph: Necklace Value, a line graph showing increasing value over time] A) $1,970 B) $3,500 C) $4,000 D) $5,000 C 2) Michael's math averages for the past five months of school are shown in the line graph. Which question cannot be answered by looking at the graph?   [Graph: Michael's Math Average, a line graph showing fluctuations in average] A) Which month or months did Michael have an average of 85% or better? B) What is the difference between Michael's best month and his worst month? C) What caused Michael's math average to drop below 80% in December? D) What is the mean of Michael's math average from September through January?   B 3) The circle graph shows the results of a survey on favorite fruit. If the survey included 80 students, how many students chose bananas?   [Circle Graph: Favorite Fruit, showing different sections including "Others"] A) 40 B) 20 C) 15 D) 1/4 B 4) The line plot below shows the number of books individual customers bought at a bookstore one day. [Line Plot: Number of Books Bought, with X's marking data points] What was the total number of customers who bought more than 3 books? A) 4 B) 6 C) 7 D) 10 A 5) The circle graph shows the favorite sport among students in Rachel's class. How many students prefer basketball over soccer?   [Circle Graph: Favorite Sport, with labeled sections for different sports] A) 3 B) 7 C) 8 D) 11 Part 6.3 - Box-and-Whisker Plots A 33) Find the first quartile of the collection of numbers: 6, 8, 4, 10, 9, 7, 8, 7. A) 6.5 B) 7.5 C) 8.5 D) 6 D 34) Which set of numbers is represented by the box-and-whisker plot?   [Box-and-Whisker Plot: showing values 15, 19, 24, 28, 30] A) 20, 24, 15, 20, 25, 18, 19 B) 19, 18, 15, 23, 25, 28, 30 C) 24, 22, 18, 16, 29, 28, 18, 20, 21, 20, 19 D) 25, 23, 17, 15, 19, 21, 28, 28, 30, 26 B 35) Which statement about the box-and-whisker plot is not true? [Box-and-Whisker Plot: showing values 62.5, 71.4, 88.9, 100.2, 117.8] A) The median is 88.9. B) The lowest score is 71.4. C) The upper quartile is 100.2. D) The range is 55.3. A 36) What is the interquartile range of the data in the box-and-whisker plot below?   [Box-and-Whisker Plot: showing values 7, 12.5, 20, 21.5, 24] A) 6 B) 12.5 C) 20 D) 21.5 A 37) In the box-and-whisker plot below, what percent of the data set fell between 9.5 and 16? [Box-and-Whisker Plot: showing values 7, 9.5, 12.5, 16, 26] A) 50% B) 25% C) 75% D) 33% B 38) According to the box-and-whisker plot, what was the lower quartile weight of Frank's classmates? 1   [Box-and-Whisker Plot: Weights of Frank's Classmates (in lbs.), showing values 50, 75, 100, 125, 150] A) 65 B) 75 C) 95 D) 125 D 39) What was the upper quartile of gallons of paint sold at John's Hardware Store in a month? [Box-and-Whisker Plot: Paint Sold Per Month at John's (in gallons), showing values 30, 40, 50, 60, 70] A) 58 B) 60 C) 61 D) 62 C 40) What is the upper quartile of the numbers 4, 6, 7, 8, 10, 12, 20? A) 8 B) 10 C) 12 D) 20 D 41) What is the interquartile range? [Box-and-Whisker Plot: Plot A, showing values 0, 5, 10, 15, 20] A) 13 B) 5 C) 4 D) [No value provided]