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SecTIoN 1B Exercises 17

SECTION 1B exercises

Displaying Categorical Data: Bar Graphs (a) What percentage of vehicles would fall in the “Other”

1. Birth days The frequency table summarizes data category?
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pg 12 on the numbers of babies born on each day of a single (b) Make a bar graph to display the data. Describe what

week in the United States. 14 you see.

Day Births (c) Would it be appropriate to make a pie chart of these
Sunday 7374 data? Explain your answer.
Monday 11,704 4. Spam Email spam is very annoying. The relative fre-
Tuesday 13,169 quency table summarizes data on the most common
Wednesday 13,038 types of spam. 17
Thursday 13,013
Friday 12,664 Type of spam Percentage
Saturday 8459 Adult 19
Make a frequency bar graph to display the data. Financial 20
Describe what you see. Health 7
2. Going up? The website fivethirtyeight.com published an Internet 7
interesting article about the more than 75,000 elevators in Leisure 6
New York City. The frequency table summarizes data on Products 25
the number of elevators of each type at that time. 15 Scams 9
Type Count Other ??
Passenger elevator 66,602 (a) What percentage of spam would fall in the “Other”

Freight elevator 4140 category?
Escalator 2663 (b) Make a bar graph to display the data. Describe what

Dumbwaiter 1143 you see.
Sidewalk elevator 943

Private elevator 252 (c) Would it be appropriate to make a pie chart of these
Handicap lift 227 data? Explain your answer.
Manlift 73 5. Family origins Here is a pie chart of U.S. Census
Public elevator 45 Bureau data showing the origin of more than 62 mil-
18

Make a frequency bar graph to display the data. lion Hispanic people in the United States. About
Describe what you see. what percentage of Hispanic people are of Mexican
3. Cool car colors The popularity of colors for cars and origin? Puerto Rican origin?
light trucks changes over time. Silver passed green in
2000 to become the most popular color worldwide,
Other
then gave way to shades of white in 2007. The relative Hispanic
frequency table summarizes data on the colors of vehi- South
cles sold worldwide in 2020. 16 American
Color Percentage of vehicles
Central American
Black 19 Mexican
Blue 7 Cuban
Brown 3
Gray 15 Puerto Rican
Green 1
Red 5
Silver 9
White 38 Origin
Yellow 2
Other ??

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