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Use the binomial probability formula P(X = x) = nCx(p)x (1 p) nx , x = number of respondents that come from a large
Use the binomial probability formula
P(X = x) = nCx(p)x (1 − p) n−x , x = number of respondents that come from a large family calculate:
1. The probability of 2 respondents coming from a large family (more than 3 children) during 3 trials.
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