## anonymous one year ago Algebra 2 Probability Help

1. anonymous

A football quarterback has 2 more chances to throw a touchdown before his team is forced to punt the ball. He misses the receiver on the first throw 30% of the time. When his first throw is incomplete, he misses the receiver on the second throw 10% of the time. What is the probability of not throwing the ball to a receiver on either throw?

2. kropot72

Let A be the event that he misses the first throw. Then P(A) = 0.3 Let B be the event he misses the second throw. Then P(B|A) = 0.1 $P(A\cap B)=P(A)\times P(B|A)=0.3\times0.1$

3. kropot72

If the answer is required as a percentage, just multiply the result of the calculation by 100.

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