Essentials of Statistics: A Tool for Social Research - With SPSS DVD
4th Edition
ISBN: 9781305707283
Author: HEALEY
Publisher: Cengage
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Chapter P, Problem 5E
Exercises
You can use the following problems as a self-test on the material presented in this review. If you can handle these problems, you’re ready to do all of the arithmetic in this text. If you have difficulty with any of these problems, please review the appropriate section of this prologue. You might also want to use this section as an opportunity to become more familiar with your calculator. The answers are given immediately following these exercises, along with commentary and some reminders.
Evaluate each of the following:
a.
b.
c.
d.
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why the answer is 3 and 10?
PS
9 Two films are shown on screen A and screen B at a cinema each evening. The numbers
of people viewing the films on 12 consecutive evenings are shown in the back-to-back
stem-and-leaf diagram.
Screen A (12) Screen B (12)
8
037
34
7 6 4 0 534
74 1645678
92 71689
Key: 116|4 represents 61 viewers for A and 64 viewers for B
A second stem-and-leaf diagram (with rows of the same width as the previous diagram)
is drawn showing the total number of people viewing films at the cinema on each of
these 12 evenings. Find the least and greatest possible number of rows that this second
diagram could have.
TIP
On the evening when 30 people viewed films on screen A, there could have been as few
as 37 or as many as 79 people viewing films on screen B.
Q.2.4 There are twelve (12) teams participating in a pub quiz. What is the probability of correctly predicting the top three teams at the end of the competition, in the correct order? Give your final answer as a fraction in its simplest form.
Chapter P Solutions
Essentials of Statistics: A Tool for Social Research - With SPSS DVD
Ch. P - Exercises You can use the following problems as a...Ch. P - Exercises You can use the following problems as a...Ch. P - Exercises You can use the following problems as a...Ch. P - Exercises You can use the following problems as a...Ch. P - Exercises You can use the following problems as a...
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