Math Data Analysis 11.1

1. The scatter plot above shows the number of customers rounded to the hundreds that visit a store at different daily high temperatures on a graph of degree intervals during the month of January. Which statement best describes the relationship between the daily high temperature and the volume of customers that visit the store?

A. As the daily high temperature increases, customer volume increases.

B. As the daily high temperature increases, customer volume decreases.

C. As daily temperature increases, customer volume first increases, then decreases.

D. As daily temperature increases, customer volume first decreases, then increases.

2. Which of the following scatter plots shows a negative relationship between x and y?

3. The scatter plot above shows the average wait for a table at several popular restaurants in San Francisco and the average cost of a dinner at the restaurant. Which statement describes the relationship between wait for a table and cost of dinner?

A. More expensive restaurants have shorter average waits for a table.

B. More expensive restaurants have longer average waits for a table.

C. The wait for a table is about the same as the average cost of a dinner.

D. There is no correlation between the wait for a table and the average cost of a dinner.

4. Ms. Nelson plotted the number of books on average that students read and the number of hours on average that students watched television. Part A What is the relationship between the number of books read and the number of hours of television watched? Explain how the scatter plot shows this information. Part B Is there a positive or negative correlation between the number of books and hours of television, or is there no correlation at all? Explain your answer.

5. The histogram shows the distribution of test scores from a 100 point test. Which of the following statements is true about the distribution of the scores?

A. 50 students received 5 points

B. Most students received at least half of the points possible.

C. The highest score was 50 points.

D. The most frequent score was between 40- 49.

6. The following histogram shows the distribution of salaries for employees of a company. Which of the statements below is true about the data in this histogram?

A. $88,000 is the highest salary any employee makes.

B. There are about 550 employees at the company.

C. The most common salary at the company is between $44,000 and $54,000.

D. No employee makes more than $550.

7. The box-and-whisker plot above represents the daily high temperatures at a beach in April. What was the median daily high temperature?

A. 68°

B. 72°

C. 78°

D. 84°

8. The circle graph above shows the amount of ingredients used in one pizza at a restaurant. Which of the following statements is true about the ingredients based on information in the circle graph?

A. The restaurant puts more mushrooms than sausage on their pizzas.

B. The restaurant uses about the same amount of sauce as it does mushrooms and sausage combined.

C. About ½ of the ingredients the restaurant uses is cheese.

D. About 1/5 of the ingredients used are in the crust.

9. Which circle graph below correctly displays the information from the chart above?

10. Using the scatter plot above and assuming a linear relationship, about how many miles would someone have run to have a heart rate of 135?

A. 2

B. 4

C. 7

D. 9

11. The graph above shows the waiting time between eruptions in minutes in relation to the length of the eruption in minutes. If an eruption lasted about 5 minutes, how long would you have to wait on average for the next eruption?

A. 82 minutes

B. 75 minutes

C. 70 minutes

D. 90 minutes

12. Which of the following graphs would be best for showing the percent of students that make up the total number of students enrolled at a high school?

13. Which of the following is best for showing the continuous data for a company’s earnings over 6 months to infer earnings between the points data was collected?

14. Which of the following graphs is best for comparing how many people liked different ice cream flavors?

15. Which of the following statements is supported by the data in the table above?

A. High GPA causes a person to study more.

B. More studying causes a person to have a higher GPA.

C. High GPA and the amount of time spent studying are positively correlated.

D. High GPA and the amount of time spent studying are negatively correlated.

16. Jake did a report for school and stated that increased crime over the past 50 years is related to increased pollution since both are positively correlated. Part A Explain what it means if there is a positive correlation between pollution and crime. Part B Based on the positive correlation, does pollution cause crime? Explain why or why not?

17. Josh created the bar graph above to give the impression that he had a much better batting average than Eddy. Josh’s batting average is 0.650 and Eddy’s is 0.644. To the nearest percentage, what percent higher is Josh’s average than Eddy’s?

A. Less than 1%

B. About 6%

C. About 93%

D. More than 100%

18. Harry is having a barbecue for his family and 60 neighbors and wants to know how much chicken and steak he should buy. He asks three of his friends what they prefer and their preferences are shown in the graph above. How much steak should Harry buy based on the data?

A. 50 servings based on this sample.

B. 20 servings based on this sample.

C. 30 servings based on this sample.

D. Cannot determine based on this sample size.

Math Data Analysis 11.1

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