Question

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20 POINTS

In New York State, 48% of all teenagers own a skateboard and 39% of all teenagers own a skateboard and roller blades. What is the probability that a teenager owns roller blades given that the teenager owns a skateboard? Enter your answer in decimal form rounded to two decimal places. Hint Change the percentages to decimals before plugging them into the conditional probability formula.

Answer 1

Answer:0.81

Step-by-step explanation:

A: Given teenager owns a skateboard. P(A) = 0.48

B:  Given teenager owns roller blades. P(B) = ? - we dont know and dont need

AB: Given teenager owns a skateboard and roller blades. P(AB) = 0.39

P(B/A) = P(AB)/P(A) = 0.39/0.48 = 0.8125

Answer 2

Answer:

0.81

Step-by-step explanation:

Just divide them and write as a decimal.