Statistics: Interpreting Graphs and Charts

How many more pizzas were sold by Uncle John's Pizza than Little Secrets Pizza?

• 40

• 200

• 210

• 45

When was the greatest amount of shoppers at the store?

• 10am

• 1pm

• 6pm

• 2pm

How many birds are represented by the green sector?

• 5

• 20

• 9

• 13

A scatter plot shows the relationship between hours studied and test scores. If there is a trend line going upwards, what does this suggest?

• As study hours decrease, test scores increase.

• As study hours increase, test scores decrease.

• As study hours increase, test scores increase.

• There is no relationship between study hours and test scores.

A histogram displays the number of hours students spend on homework each week. If the 0-1 hour range has the smallest bar, what does this suggest?

• No students spend 0-1 hour on homework.

• Few students spend only 0-1 hour on homework each week.

• Most students spend 0-1 hour on homework.

• The data is incorrect.

A pie chart represents the types of books read by a class. If 30% of the chart is dedicated to fiction books, what does this percentage signify?

• 30% of the books are non-fiction.

• 30% of the students dislike fiction.

• 30% of the books read are fiction.

• Each student reads 30 fiction books.

A histogram shows the distribution of students' ages in a school. If the 10-12 age group has the highest frequency, what does this tell us?

• Students aged 10-12 are the youngest.

• Most students are aged between 10 and 12.

• No students are older than 12.

• Students aged 10-12 are the majority.

A histogram shows the scores on a math test. If the 70-79 range has the tallest bar, what does this indicate?

• Most students scored between 70 and 79.

• The test was out of 70-79 points.

• One student scored between 70 and 79.

• The average score was between 70 and 79.

A line graph illustrates daily temperatures over a week. If the line peaks at 90°F on Friday, what does this mean?

• The average temperature for the week is 90°F.

• The temperature rose to 90°F on Friday.

• Friday was the only warm day.

• The temperature was 90°F all week.

The pie chart shows the colours of some counters in a bag. What fraction of the counters are white? Simplify fully!

• ⁹⁰/₃₆₀

• ¹/₄

• ¹/₃

• ¹/₂