Graphical Representations of Data

Which types of charts are typically used to display categorical data?

• Histograms and Timeplots

• Bar Charts and Pie Charts

• Stemplots and Histograms

• Timeplots and Bar Charts

A person's weight is exactly 120 lbs. In which interval of a frequency distribution table would this weight be included, following the standard convention?

• 100 - 110

• 110 - 120

• 120 - 130

• 130 - 140

To convert a frequency distribution into a relative frequency distribution, what calculation is performed for each frequency value?

• Multiply by 100

• Divide by the total number of data values

• Add the previous frequency value

• Subtract the next frequency value

In a stemplot, for the number 117, what would be the stem and the leaf?

• Stem: 1, Leaf: 17

• Stem: 11, Leaf: 7

• Stem: 7, Leaf: 11

• Stem: 117, Leaf: 0

What is the main difference between a bar chart and a histogram?

• A bar chart is an estimate.

• A histogram is only for categorical data.

• A histogram displays a range of values.

• There is no difference between them.