Question
The animal colony at a hospital contains 12 male rats and 18 female rats. Of the...
The animal colony at a hospital contains 12 male rats and 18 female rats. Of the 18 females, 15 are white and 3 spotted. Of the 12 males, 6 are white, and 6 are spotted. Suppose that you randomly select 1 rat from this colony. What is the probability, as a proportion, of obtaining a white male? Write your answer to TWO DECIMAL PLACES: X.XX
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Given data
The animal colony at a hospital contains 12 male rats and 18 female rats. of the 18 females 15 are white and 3 spotted of the 12 males 6 are white and 6 are spotted.
Suppose that you randomly select 1 rat from this colony. what is the probability as a proportion of obtaining a white male.
Let A be the eventof obtaining a white and B be the event of obtaining female.
P(ANB) = The rate being white and male
P(B) = The male rate
P(ANB) = The rat being white and male
= 6/0
P(B) = male rat = 12/30
The probability as a proportion of obtaining a white male is 0.5.
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