Complete the table.What is the probability that a randomly selected child will have wavy hair?

Complete the table.What is the probability that a randomly selected child will have wavy hair?

Table 3.22 identifies a group of
children by one of four hair colors, and by type of hair.

Hair Type
Brown Blond Black
Red Totals

Wavy
20 15 3 43

Straight 80 15 12

Totals 20 215

a. Complete the table.

b. What is the probability that a randomly
selected child will have wavy hair?

c. What is the probability that a randomly
selected child will have either brown or blond hair?

d. What is the probability that a randomly
selected child will have wavy brown hair?

e. What is the probability that a randomly
selected child will have red hair, given that he or she has straight hair?

f. If B is the event of a child having
brown hair, find the probability of the complement of B.

g. In words, what does the complement of B
represent?


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