th
, 2011
(Chapters 3 and 4)
True/False questions carry 1.5 points each, Multiple Choices carry two points each and the
Essay type questions carry 5 points each. The total score is 50 points. I will round up if
your total score is in decimals.
True/False
Chapter 3
1
. The income distribution is skewed to the right; therefore the Median Income
must be less than the Mean Income.
F
2
. The range of the measurement is the largest measurement plus the smallest
measurement.
F
3
. The mean is said to be more resistant to extreme values.
T
4
. If there are 5 classes in a frequency distribution then the third class does not
necessarily contain the median.
F
Chapter 4
5
. The probability of an event is the multiplication (or product) of the probabilities
of the sample space outcomes that correspond to the event.
F
6. If events A and B are independent, then P(A/B) is always equal to zero.
F
7. If events A and B are mutually exclusive, then P(A/B) is always equal to zero.
T
8. Events that have no sample space outcomes in common and, therefore cannot
occur simultaneously are referred to as independent events.
F
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 Spring '11
 sda
 Normal Distribution, Standard Deviation, Mean, Probability theory, mean income

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