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Maurinko [17]
3 years ago
6

Please Help!!! And please dont answer with anything random I really need help!!!

Mathematics
1 answer:
mart [117]3 years ago
6 0

okay, let's see if I can do this without my calculator

using the Bernoulli Trial equation (I think that's what it's called)

nCr x (p)^r x (q)^n-r

now 5C4 is 5 (Thanks Pascal's triangle)

p is 1/3

q is 2/3

r is 4

n is 5

(1/3)^4 is 1/81

(2/3)^5-4 is just 2/3

5 x 1/81 x 2/3 = 5 x 2/243 = 10/243

This was in my head so check for mistakes

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