Exploring Dot Plots and Frequency Tables

What type of data representation uses a number line and dots?

• Dot plot

• Pie chart

• Histogram

• Bar graph

Which lengths of iguanas were most common in the sample?

• 17 inches

• 15 inches

• 12 and 18 inches

• 14 and 16 inches

What is the purpose of a frequency table?

• To display data in a pie chart

• To compare two sets of data

• To organize data by how often something occurs

• To show data on a number line

How many quiz grades were recorded at 85?

• Three

• Two

• Four

• One

What was the most common energy efficiency rating?

• 68

• 70

• 66

• 72

How many homes had an energy efficiency rating greater than 70?

• 5

• 4

• 3

• 2

What fraction of homes had a rating between 58 to 64?

• 3/20

• 10/20

• 15/20

• 6/20

What percentage of homes were rated less than 68?

• 75%

• 100%

• 50%

• 25%

How many data points were recorded for the number 13 in the survey?

• One

• Two

• Five

• Three

Which range had the most data points in the final survey dot plot?

• 10 to 13

• 5 to 9

• 18 to 20

• 14 to 17