Probability Assignment: Simple and Joint IVE COLOR Black Brown Blue Green Gray T

Question

Probability Assignment: Simple and Joint IVE COLOR Black Brown Blue Green Gray Total Female Male Total 20 30 10 15 10 85 25 45 10 82 167 15 12 20 45 35 20 I. 2. What is the Probability that a randomly selected person will have Black eyes? What is the Probability that a randomly selected Female will have Black eyes? In other words, what is the probability of a person having black eyes GIVEN that they are female? What is the Probability that a randomly selected person will have Green eyes and will be Male? What is the probability of selecting a Female AND a Gray eye person? 3. 4.

Explanation / Answer

1. P(Black eyes) = 45/167 = 0.2695 [Rounded off to 4 decimal places]

2. P(Black eyes | Female) = 20/85 = 4/17 = 0.2353     [Rounded off to 4 decimal places]

3. P(Green eyes and male) = 20/167 = 0.1198    [Rounded off to 4 decimal places]

4. P(Female and a grey eye person) = 10/167 = 0.0599    [Rounded off to 4 decimal places]

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