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1. An element of the sample space is
an outlier
a sample point
an event
an estimator
Question Type: Multiple Choice
2. A lottery is conducted using three urns. Each urn contains chips numbered from 0 to 9. One chip is selected at random from each urn. The total number of sample points in the sample space is
1000
100
30
729
Question Type: Multiple Choice
3. 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
4. Since the sun must rise tomorrow, then the probability of the sun rising tomorrow is
much larger than one
zero
infinity
None of the above
Question Type: Multiple Choice
5. A(n) __________ is a graphical representation in which the sample space is represented by a rectangle and events are represented as circles.
histogram
frequency polygon
tree diagram
Venn diagram
Question Type: Multiple Choice
6. The probability of at least one head in two flips of a coin is
0.5
0.33
0.75
1.00
Question Type: Multiple Choice
7. Two events are mutually exclusive if
the probability of their intersection is 1
they have no sample points in common
the probability of their intersection is 0.5
the probability of their intersection is 1 and they have no sample points in common
Question Type: Multiple Choice
8. One of the basic requirements of probability is
both P(A) P(Ac) 1 and if there are kexperimental outcomes, then P(E1) P(E2) ... P(Ek) 1
both P(A) P(Ac) 1 and if there are kexperimental outcomes, then P(E1) P(E2) ... P(Ek) 1
P(A) P(Ac) 1
if there are kexperimental outcomes, then P(E1) P(E2) ... P(Ek) 1
Question Type: Multiple Choice
9. The total number of data items with a value less than or equal to the upper limit for the class is given by the
cumulative frequency distribution
cumulative relative frequency distribution
relative frequency distribution
frequency distribution
Question Type: Multiple Choice
10. 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
11. A sample point refers to a(n)
individual outcome of an experiment
set of all possible experimental outcomes
numerical measure of the likelihood of the occurrence of an event
All of these answers are correct
Question Type: Multiple Choice
12. A researcher has collected the following sample data. The mean of the sample is 5. 3 5 12 3 2 The coefficient of variation is
72.66%
264%
81.24%
330%
Question Type: Multiple Choice
13. Of five letters (A, B, C, D, and E), two letters are to be selected at random. How many possible selections are there?
20
7
10
50
Question Type: Multiple Choice
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