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Problem 1.
MRA1581: Probability in Words
Probability is a measure of how likely an event is to occur.
Match one of the probabilities that
follow with each statement about an event. (The probability is usually a much more exact
measure of likelihood than is the verbal statement.)
0, 0.01, 0.3, 0.6, 0.99, 1
1.
This event is impossible.
It can never occur.
2.
This event is certain.
It will occur on every trial of the random phenomenon.
Problem 2.
ACT3: Hair Colors
A study of children in Caithness, Scotland classified them according to hair color.
Fair 27%
Red 5.3%
Medium 39.7%
Dark 25.8%
Black 2.2%
Suppose we select a child at random from a population described by this table.
1.
What is the probability that the child will have Red hair?
2.
What is the probability that the child will have either Red or Fair hair?
3.
What is the probability that the child will have neither Dark nor Black hair?
4.
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 Spring '11
 Thaler
 Probability

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