Assignment 30 - Data Displays

What is the class width of the histogram displayed?

• 60

• 10

• 9

• 6

Which charts and/or graphs are BEST for comparing qualitative (categorical) data? (Select all that apply)

• Pie Charts

• Stem and Leaf Plots

• Line Plots (aka "dot plots")

• Histograms

• Bar Graphs

Based on the following pie chart, what does this household spend the LEAST amount of money on each month?

• Housing

• Gas

• Insurance

• Entertainment

Based on the following time series charts, what statement(s) are true? (Select all that apply)

• time intervals go on the horizontal axis

• time series charts tell us how quantitative data performs over time

• time intervals go on the vertical axis

• time series charts are a line graph

The histogram shows the ages of people in a community chorus. How many people in the chorus are younger than 40 years old?

• 31

• 14

• 35

• 3

200 people were surveyed about their favorite ice cream. How many chose Kesar Pista? 

• 30 people
• 60 people
• 38 people
• None of these

Prices of vehicles sold last month at a local dealership are going to be tallied into these classes. If a car was sold for $24,000 which category would the tally belong?

• $15,000 up to $18,000

• $21,000 up to $24,000

• $24,000 up to $27,000

• $27,000 up to $30,000

How many classes are there in this table?

• 51

• 4

• 10

• 2

Which is the modal class?

• 140 ≤ h < 150

• 150 ≤ h < 160

• 160 ≤ h < 170

• 170 ≤ h < 180

To estimate the mean, we should use

• each class' lower bound

• each class' upper bound

• each class

• each class' middle value