Exploring Frequency Tables and Histograms

What is the purpose of intervals in a frequency table?

• To group data values

• To calculate the mean

• To determine the mode

• To find the median

How do you represent the frequency of data values in a frequency table?

• Using tally marks

• Using bar graphs

• Using pie charts

• Using line graphs

In the example, which interval does the number 81 fall into?

• 81 to 90

• 61 to 70

• 51 to 60

• 71 to 80

What is a histogram?

• A bar graph showing the frequency of data values

• A line graph showing data trends

• A pie chart showing data proportions

• A scatter plot showing data distribution

What does the height of a bar in a histogram represent?

• The frequency of data values

• The median of data values

• The mean of data values

• The mode of data values

Why can't you determine the mean, median, or mode from a histogram?

• Because it shows the range of data

• Because it shows grouped data, not individual values

• Because it shows the standard deviation

• Because it shows the total sum of data

How many runners ran a maximum of 15 laps in the example?

• 19

• 23

• 26

• 10

Which interval contains the least number of runners in the example?

• 16 to 20

• 11 to 15

• 6 to 10

• 1 to 5

In the birth weight histogram example, how many students weigh between 7 and 7.9 pounds?

• 13

• 3

• 10

• 9

In the hours worked example, what is the frequency for the interval 30 to 39?

• 4

• 7

• 10

• 9