Other Graphs Mean,Median, Mode and Range Statistical Questions Box and Whisker Plots Data Distribution

QUESTION: The line plot shows the number of hours Phil spent studying each night during a two-week period. What is the range of data represented in this line plot? ANSWER: 4

QUESTION: The following is a set of scores on a math test: 68, 77, 93, 61, 84, 88, 76, 91, 80, 100, 89 What is the median of the scores? ANSWER: 84

QUESTION: Susan has four 20-point projects for math class. Susan’s scores on the first 3 projects are shown below: Project 1: 18 Project 2: 15 Project 3: 16 Project 4: ? What does she need to make on Project 4 so that the average for the four projects is 17? ANSWER: 19

QUESTION: Trish is making money by walking dogs in her neighborhood. She has set a goal of making an average of $50 per month. So far this year, her monthly totals have been $30, $25, $50, $20 and $65. How much money must she make next month to meet her goal? ANSWER: $110

QUESTION: What number could you add to the following set of data to have a mean of 16?12, 16, 18, 10, 14 ANSWER: 26

QUESTION: Which is the best example of a statistical question? A-What grade did Scott get on the last science test? B-What were the results for Ms. Gershon’s class on Monday’s science test? C-Did Penny take the science test on Monday? D-How long will it be before Ms. Gershon’s gives another science test? ANSWER: B

QUESTION: Which statement most likely resulted from the use of statistics? A-My height is 48 inches. B-25% of the students in my class are shorter than me. C-I think that no one in my class is taller than 54 inches. D-I have grown a lot in the last year. ANSWER: B

QUESTION: Which of the following is a statistical question? A-Is the temperature in this room 65 degrees? B-Is the temperature in this room more than 65 degrees? C-Has the temperature in this room been more than 65 degrees this month? D-When do you think that the temperature in this room will be greater than 65 degrees? ANSWER: C

QUESTION: Is this a statistical question? What grade did Scott get on the last science test? ANSWER: NO

QUESTION: What 2 components make up a good statistical question? ANSWER: Variability and name the population

QUESTION: Use the Box and Whisker plot below to find the IQR. ANSWER: 7

QUESTION: What percent of temperature were lower than 8.5? ANSWER: 75%

QUESTION: What is the 5 number summary for this box-and-whisker plot below? ANSWER: UQ=10 LE=1UE=12Median=8.5LQ=6

QUESTION: What does the box and whisker plot look like for the following data? ANSWER:

QUESTION: A-The top 25% of the temperatures are between what two values? B-Within what range of temperatures will the middle 50% of the data occur? ANSWER: A: 14 and 20B: 8 and 14

QUESTION: Describe the graph. ANSWER: Peak at 124

QUESTION: Describe the graph. ANSWER: Symmetrical

QUESTION: Describe the graph. ANSWER: Skewed Right with outliers

QUESTION: Describe the graph. ANSWER: Skewed Left

QUESTION: Describe the graph. ANSWER: Outlier

QUESTION: The line plot shows Amy’s scores on all of the quizzes she took this year. If a score of 69 or lower is a failing grade, then how many quizzes did Amy fail? ANSWER: 1 Quiz

QUESTION: What percent of the students scored 95 or above? ANSWER: 20%

QUESTION: A-How many students throw a discus 35 or more meters? B-What is the most common distance a discus was thrown? ANSWER:A: =19B: 25-29

QUESTION: Which statement about the data is true based on the frequency table? A-Most of the people were speeding. B-50% of the people were traveling 55 miles per hour or slower. C-255 people were traveling at or below the speed limit. D-25% of the people were travelling at or between 36 and 45 miles per hour. ANSWER: C

QUESTION: A. What is the size of the intervals? B. How many students scored 60 or below? ANSWER: A: 10B: =10