Binomial Probability Distribution

[journeygirl280]

If the probability of rain is 60% on each of three consecutive days, find:
1)the probability that it rains on all three days,
2)the probability that it rains on exactly two of the three days?

For number 1 my anwer was .064 and for number 2 my answer was .288, am I correct? If not can you tell me where I went wrong?

 

[journeygirl280]

Can someone help me please?

 

[tkhunny]

Didn't we do this already? HOW did you arive at those answers?

0.064 - Nope.
0.288 - Nope.
Can I tell you where you went wrong? - Nope. You didn't show your work.

Did you identify the distribution?
Did you define the appropriate parameters?

 

[stapel]

Didn't we do this already?

Yes, but that conversation was with another poster.

It might be helpful if this poster clarified which part of that explanation is still confusing....

Eliz.