Download RQ10 (5_1-5_2)

Reading Quiz
For use with Classroom Response Systems
Introductory Statistics:
Exploring the World through Data, 1e
by Gould and Ryan
Sections 5.1 & 5.2
Modeling Variation with Probability
© 2013 Pearson Education, Inc.
Slide 5 - 1
True or False
Random means that no predictable pattern
occurs and that no digit is more likely to
appear than any other.
50%
50%
A.
B.
True
False
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A.
© 2013 Pearson Education, Inc.
B.
Slide 5 - 2
To generate random numbers, one can
A.
use the internet.
B.
use a computer
program.
C.
use a random number
table.
D.
All of the above.
25%
A.
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© 2013 Pearson Education, Inc.
25%
25%
B.
C.
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D.
Slide 5 - 3
Empirical probabilities are
A.
the relative frequencies at
which an event happens after
infinitely many repetitions.
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B.
the short-run relative
frequencies of an event after
infinitely many repetitions.
C.
the relative frequencies based
on an experiment.
D.
the long-run relative
frequencies based on an
experiment.
A.
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B.
C.
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D.
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© 2013 Pearson Education, Inc.
Slide 5 - 4
True or False
Probabilities are always numbers between 0
and 1, exclusive of 0 and 1.
50%
A.
B.
50%
True
False
Response Counter
A.
© 2013 Pearson Education, Inc.
B.
Slide 5 - 5
True or False
If the probability of an event happening is 1,
then that event never happens.
50%
A.
B.
50%
True
False
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A.
© 2013 Pearson Education, Inc.
B.
Slide 5 - 6
The probability that an event will not
happen is
A.
negative the probability25%
it will happen.
B.
the reciprocal of the
probability it will
happen.
C.
1 minus the probability
it will happen.
D.
None of the above.
A.
25%
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B.
C.
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D.
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© 2013 Pearson Education, Inc.
Slide 5 - 7
True or False
The probability that an event will not happen is
called the complement of the event.
50%
A.
B.
50%
True
False
Response Counter
A.
© 2013 Pearson Education, Inc.
B.
Slide 5 - 8
True or False
A list that contains all possible (and equally
likely) outcomes is called the sample space.
50%
A.
B.
50%
True
False
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A.
© 2013 Pearson Education, Inc.
B.
Slide 5 - 9
The word OR creates a new event out
of two events A and B. The new event
consists of
A.
all outcomes that are only in
A, that are only in B, or that
are in both.
B.
only those outcomes that are
in both event A and event B.
C.
only those outcomes that are
in either event A or event B,
but not both.
all outcomes that are in either
event A or event B, but not
both.
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25%
25%
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B.
C.
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D.
© 2013 Pearson Education, Inc.
A.
D.
Slide 5 - 10
True or False
When two events have no outcomes in
common—that is, when it is impossible for
both events to happen at once—they are called
mutually exclusive events.
50%
A.
B.
50%
True
False
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A.
© 2013 Pearson Education, Inc.
B.
Slide 5 - 11