Constructing Histograms
Car Sales
Over the past several years, you have recorded the number of automobiles that a used car dealer in your town
has sold in different price ranges. Construct a histogram to represent the information.
Price Range
Number of Cars Sold
$0 - $999
$1,000 - $1,999
$2,000 - $2,999
$3,000 - $3,999
$4,000 - $4,999
$5,000 - $5,999
$6,000 - $6,999
$7,000 - $7,999
$8,000 - $8,999
$9,000 - $10,000
3
5
12
25
40
75
52
35
15
9
Radio Station
You’re working at a radio station in Atlanta, and your task is to figure out during what time of the day you have
the largest listening audience. You decide to do this by counting how many song requests you get during each
hour. Make a histogram of the data you collected to present to your boss.
Hour
Tally of Requests
10:00am – 11:00am
11:00am – 12:00pm
12:00 – 1:00pm
2:00pm – 3:00pm
3:00pm – 4:00pm
IIIIIII
IIII
IIIIIIIIIII
IIIIII
II
Television Prices
The prices of televisions sold at a store are given below. Make a histogram that shows the data.
Price Interval
Tally of TV’s Sold
$100 - $150
$150 - $200
$200 - $250
$250 - $300
IIIII
IIIIIII
II
IIII
Cell Phone Minutes
The following numbers represents the number of minutes a group of people say they spend on their cellphone.
Complete the table with the correct intervals and the tallies of each. Then make a histogram of the data.
9, 19, 9, 13, 20, 8, 9, 19, 6, 12, 6, 18, 20, 10, 13, 17, 9, 5, 16, 5
Interval of
Minutes
Tally
5–8
13 – 16
Camp Counselors
The following numbers represents the ages of counselors of a summer camp. Complete the table with the
correct intervals and the tallies of each. Then make a histogram of the data
19, 23, 26, 23, 16, 20, 26, 19, 21, 24, 21, 17, 27, 25, 22, 17, 16, 25
Age Intervals
19 – 21
22 – 24
Tally of Ages
Ticket In/Out the Door
TEST SCORES: The numbers below represent the scores from a test for one class. Determine the correct
intervals to use and then tally the number of scores in each interval. Then make a histogram to represent the
data graphically.
70, 78, 68, 82, 91, 98, 76, 97, 89, 79, 88, 90, 85, 77, 84, 82, 90, 86, 93, 64, 94, 68, 86, 87
Score
Intervals
Tally of
Scores
Ticket In/Out the Door
TEST SCORES: The numbers below represent the scores from a test for one class. Determine the correct
intervals to use and then tally the number of scores in each interval. Then make a histogram to represent the
data graphically.
70, 78, 68, 82, 91, 98, 76, 97, 89, 79, 88, 90, 85, 77, 84, 82, 90, 86, 93, 64, 94, 68, 86, 87
Score
Intervals
Tally of
Scores