A study indicates that 78% of teenagers have have a tattoo. You randomly sample 7 teenagers. Find the probability that more than 5 have a tattoo.
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To calculate this, we use the binomial probability formula: P(X=k) = (n choose k) * p^k * (1-p)^(n-k) where n is the number of trials, k is the number of successes, p is the probability of success, and (n choose k) is the number of ways to choose k successes out Show more…
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