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Needhelpp101
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A dice is rolled 20 times and the number of twos that come up is tallied. Find the probability of getting exactly four twos.
A. 0.202
B. 0.075
C. 0.101
D. 0.083
 one year ago
 one year ago
Needhelpp101 Group Title
A dice is rolled 20 times and the number of twos that come up is tallied. Find the probability of getting exactly four twos. A. 0.202 B. 0.075 C. 0.101 D. 0.083
 one year ago
 one year ago

This Question is Closed

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.2
This is a binomial probability distribution problem so you'll use the formula P(X = k) = (n C k)*(p)^k*(1p)^(1k)
 one year ago

jim_thompson5910 Group TitleBest ResponseYou've already chosen the best response.2
in this case, n = 20 p = 1/6 = 0.16667 k = 4
 one year ago

Needhelpp101 Group TitleBest ResponseYou've already chosen the best response.0
hmmm. ok
 one year ago
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