Unit 7: Scatter Plots and Two-Way Tables

Multiple Choice

1. The table shows number of people signed up to sing on a karaoke stage on each night of the week. Which scatter plot best represents the table?

Multiple Choice

2. Consider the scatter plot. Which statement best describes the data set?

• A. Positive association with point R as an outlier

• B. Positive association with point T as an outlier

• C. Negative association with point R as an outlier

• D. Negative association with point T as an outlier

Multiple Choice

3. Which statement best describes the association shown in the scatter plot?

• A. Positive, linear association

• B. Positive, nonlinear association

• C. Negative, linear association

• D. Negative, nonlinear association

Multiple Choice

4. Which shows the most accurate line of best fit?

Multiple Choice

5. The graph shows a line of best fit for data collected on the number of bakery items left in the bakery over the course of one day’s sales.

The equation for the line of best fit is $$𝑦=−10𝑥+100$$ . What does the y-intercept represent?

• A. The number of bakery items sold per day

• B. The number of bakery items sold per hour

• C. The number of bakery items in the store at the beginning of the day

• D. The number of bakery items left in the store at the end of the day

Multiple Choice

6. The average baby growth of newborn babies each month after birth is shown in the scatter plot below. The equation for the line of best fit is $$𝑦=\frac{5}{4}𝑥+21$$ . Based on the line of best fit, what length might be expected if a baby is 7 months old?

• A. 21 inches

• B. 30 inches

• C. 29 inches

• D. 32 inches

Multiple Choice

7. Fifty students were asked if they played spring sports and/or fall sports. The data is listed below. Which two-way table best represents the data given?

7 students do not play either sports

21 students play both sports

17 students play only fall sports

5 students play only spring sports

Multiple Choice

8. The local sheriff’s station has gathered data on drivers who text and drive and whether or not they have accidents. They presented their data in the table below. Which tendency does the table suggest?

• A. Those who do not text and drive tend to have accidents.

• B. Those who text and drive tend not to have accidents.

• C. Those who text and drive tend to have accidents.

• D. None of the tendencies listed are correct.

Multiple Choice

9. The two-way table below shows the raw data of a recent survey that compared coffee and tea drinkers.

Based on the data, what percent of people surveyed drink both tea and coffee?

• A. 23%

• B. 32%

• C. 7%

• D. 40%

Multiple Choice

10. The two-way table below shows the raw data of a recent survey that compared coffee and tea drinkers.

Based on the data, what percent of tea drinkers do not also drink coffee?

• A. 36%

• B. 61%

• C. 39%

• D. 50%