|Jul6-11, 07:21 PM||#1|
statistics, probability, basketball foul shots
1. The problem statement, all variables and given/known data
Records show that 72% of basketball foul shots attempted are successfully made during practice. Today, each of the 10 members of the team gets a practice shot. What is the probability that at least 8 team members make the shot successfully?
2. Relevant equations
(answer posted below)
3. The attempt at a solution
(8/10 * .72) + (9/10 * .72) + (10/10 * .72) = 1.944
|Jul6-11, 07:29 PM||#2|
Try using the binomial distribution.
|Jul6-11, 07:34 PM||#3|
Consider the rule for figuring 'AND' probabilities.
For example, what is the probability that two coin flips in a row will both be tails?
0.5 X 0.5 = 0.25 = 25%.
So there is also a 25% chance both will be tails.
Since all the probabilities must add to 100%, the chance of one flip being heads and the other tails is 50%.
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