**Q6: **

The histogram shows the times taken for a group of students to read a short article.

How many students took between 60 and 70 seconds to read the article?

- A17 students
- B16 students
- C19 students
- D15 students
- E18 students

How many more students took between 80 and 90 seconds to read the article than those who took between 50 and 60 seconds?

- A17 students
- B19 students
- C18 students
- D16 students
- E15 students

How many students took more than 80 seconds to read the article?

- A31 students
- B23 students
- C32 students
- D29 students
- E30 students

How many students took less than 70 seconds to read the article?

- A23 students
- B22 students
- C21 students
- D32 students
- E19 students

How many students were asked to read the article?

- A73 students
- B75 students
- C70 students
- D72 students
- E71 students

What is the longest possible range of times taken by the students?

What is the shortest possible range of times taken by the students?

**Q7: **

Which of the statements is correct for the distribution represented by the diagram?

- AThe distribution has an outlier and is not symmetric.
- BThe data is clustered around a peak of 8.
- CThe mean is 14.
- DThe data has a gap and is not symmetric.
- EThe data is symmertic.

**Q8: **

What type of data is appropriate for a histogram?

- Aqualitative
- Bquantitative–discrete
- Cquantitative–continuous

**Q9: **

What do the heights of the bars on a histogram represent?

- Athe overall range of values
- Bdata values
- Cthe frequency in each group

**Q10: **

This histogram shows the time that students spend doing homework every night. How many students spend seventy-five minutes or less doing homework?

**Q11: **

Michael recorded how long he takes to get dressed in the morning. The results are shown on the diagram. Which time interval has the highest frequency?

- A
- B
- C
- D
- E

**Q12: **

This histogram shows the time that students spend doing homework every night. How many students spend 15 minutes or more doing homework?

**Q13: **

The histogram shows the time it took for several runners to finish a 400-meter dash. Determine the percentage of runners who finished in less than 70 seconds.

**Q14: **

The frequency diagram shows the number of movies watched by a class of students during a month. How many students watched less than 14 movies?

- A155
- B125
- C15
- D140

**Q15: **

Use the histogram to find the percentage of cities that have an area between 200 and 600 square kilometers.

**Q16: **

The histogram represents the ages of people on a recent airplane flight. In what age range would you find the median of the data?

- A ages 20–29
- B ages 10–19
- C ages 40–49
- D ages 30–39

**Q17: **

The histogram demonstrates the wind speeds in 30 cities. What is the most common interval for the wind speed?

- A mph
- B mph
- C mph
- D mph

**Q18: **

What should be plotted on the vertical axis of a histogram?

- Athe overall range of values
- Bdata values
- Cfrequency

**Q19: **

Does this histogram show that the most common amount of sugar () per serving of cereal satisfies ?