TABLE 4-3
A survey is taken among customers of a fast-food restaurant to determine preference for hamburger or chicken. Of 200 respondents selected, 75 were children and 125 were adults. 120 preferred hamburger and 80 preferred chicken. 55 of the children preferred hamburger.
-Referring to Table 4-3, assume we know that a person has ordered hamburger. The probability that this individual is a child is _____ .

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The Answer of TABLE 4-3
A survey is taken among customers of a fast-food restaurant to determine preference for hamburger or chicken. Of 200 respondents selected, 75 were children and 125 were adults. 120 preferred hamburger and 80 preferred chicken. 55 of the children preferred hamburger.
-Referring to Table 4-3, assume we know that a person has ordered hamburger. The probability that this individual is a child is _____ .

TABLE 4-3 A Survey Is Taken Among Customers of a Fast-Food Restaurant