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1. __________ can be used to determine the percentage of data values that must be within one, two, and three standard deviations of the mean for data having a bell-shaped distribution.
box plot
five-number summary
empirical rule
Chebyshev's theorem
Question Type: Multiple Choice
2. An element of the sample space is
an outlier
a sample point
an event
an estimator
Question Type: Multiple Choice
3. An important numerical measure of the shape of a distribution is the
skewness
correlation coefficient
relative location
variance
Question Type: Multiple Choice
4. Given that event E has a probability of 0.25, the probability of the complement of event E
is 0.25
can have any value between zero and one
cannot be determined with the above information
must be 0.75
Question Type: Multiple Choice
5. The collection of all possible sample points in an experiment is
the population
a sample point
the sample space
an experiment
Question Type: Multiple Choice
6. If P(A) = 0.38, P(B) = 0.83, and P(A Ç B) = 0.57; then P(A È B) =
0.78
1.21
0.64
1.78
Question Type: Multiple Choice
7. Any process that generates well-defined outcomes is
an experiment
an event
a sample point
None of the answers is correct.
Question Type: Multiple Choice
8. The probability of the intersection of two mutually exclusive events
must always be equal to 1
can be any positive value
can be any value between 0 to 1
must always be equal to 0
Question Type: Multiple Choice
9. If A and B are mutually exclusive, then
P(A) + P(B) = 1
P(A B) = 1
P(A) + P(B) = 0
P(A B) = 0
Question Type: Multiple Choice
10. An experiment consists of tossing 4 coins successively. The number of sample points in this experiment is
8
16
4
2
Question Type: Multiple Choice
11. If P(A) = 0.85, P(A È B) = 0.72, and P(A Ç B) = 0.66, then P(B) =
0.28
0.15
0.53
0.15
Question Type: Multiple Choice
12. Assume your favorite football team has 2 games left to finish the season. The outcome of each game can be win, lose or tie. The number of possible outcomes is
4
6
2
None of the above
Question Type: Multiple Choice
13. The union of events A and B is the event containing
all the sample points common to both A and B
all the sample points belonging to A or B
all the sample points belonging to A or B or both
all the sample points belonging to A or B, but not both
Question Type: Multiple Choice
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