Answer:
3(4x-1)
Step-by-step explanation:
I hope this is correct and helpful
Answer:
p(4 successes) ≈ 7.7%
Step-by-step explanation:
p(k successes in n trials) = C(n,k)·p^k·(1-p)^(n-k)
You have n=5, k=4, p=0.4, so the probability is ...
p(4 successes) = C(5,4)·(0.4)^4·(1 -0.4)^1 = 5·0.4^4·0.6 = 0.0768
p(4 successes) ≈ 7.7%
I would go with C. like the other person
Answer is in a photo. I couldn't attach it here, but I uploaded it to a file hosting. link below! Good Luck!
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