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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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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