Question

Marco recorded the hair colors of the people attending a seminar on genetics.

brown 9
black 54
blond 1
gray 4

What is the probability that a randomly selected person will have gray hair?

Write your answer as a fraction or whole number.
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Answer 1

Answer= 1/17
If you take 4 (number of gray hair) that is your numerator.
Now add up all the numbers (68) that is your denominator.
You now have a fraction of 4/68 but that can be reduced to 1/17.