Question
. Table 3.22 identifies a group of children by one of four hair colors, and by type of hair. FIll in the table and find
.
Table 3.22 identifies a group of children by one of four hair colors, and by type of hair. FIll in the table and find the following probabilities. When filling in the table, you answers will be whole numbers. When answering the probability questions, answer using fractions, example 34/57.
Hair Type | Brown | Blond | Black | Red | Totals |
---|---|---|---|---|---|
Wavy | 20 | 15 | 3 | 43 | |
Straight | 80 | 15 | 12 | ||
Totals | 20 | 215 |
Table 3.22
1. What is the probability that a randomly selected child will have wavy hair?
2. What is the probability that a randomly selected child will have either brown or blond hair?
3. What is the probability that a randomly selected child will have wavy brown hair?
4. What is the probability that a randomly selected child will have red hair, given that he or she has straight hair?
5. If B is the event of a child having brown hair, find the probability of a child not having brown hair.
11 points
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