1
Quiz #1 STA2023 Stemplots and Histograms
Write your quiz up on a separate piece of paper with your name, date, course registration
number, and the time and days that you attend the class. Show all work for full credit. Your
submitted quiz should be neat, clear and detailed. It should not be a rough draft. When in doubt,
include as much relevant, correct information pertaining to your answer as possible. Remember,
start early and seek out help if you “get stuck.”
1. Here are the numbers of homeruns that Babe Ruth hit in his 15 years with the New York
Yankees 1920 to 1934:
54
59
35
41
46
25
47
60
54
46
49
46
41
34
22
a. (1 pt.) (circle the one answer) The individuals in this situation are (HINT: think of
the data in a spreadsheet format)
A) Babe Ruth.
B) the home runs.
C) the 15 years Babe Ruth was in the New York Yankees.
D) the baseball players on the New York Yankees team.
b. (4 pts.) Make a stemplot of these data. It should have a “class width” of 10. The
digits (leaves) should be in order.
c. (1 pt.) (circle the one answer) According to the stemplot, is Babe Ruth’s famous 60
homeruns in 1927 an outlier?
A) Yes.
B) No.
d. (1 pt.) Answer this question after you answer part c!
Suppose you had a dream where Babe Ruth stayed with the New York Yankees one
more year. You dreamed that in 1935 he hit 80 homeruns! Add 80 to your stemplot
as if it were a part of the original data list.
2. (6 pts.) The 2002 General Social Survey asked, “On the average day, about how many
hours do you personally watch television?” On the last page of this quiz are the
responses of 70 Valencia Community College students. Make a frequency histogram of
the data. Choose a class width of 2 starting with a lower class limit of 0. An asterisk (*)
means that no response was recorded for that student. Give the graph a title and label the
axes appropriately. How many students watch from 4 to under 8 hours of television on
the average day?
a. (3 pts.) Which class has the highest frequency and what is this frequency?
