I've got 3 questions left that I need help computing for statistics. Any one willing to help out?

PM me for the questions.... TIA.

I'm offering paypal.

Tim

 

You can't post the questions on here?...

 

from past experience the probability of any given customer making a purchase is 0.3. three customers have entered the store. What is the probability that 2 of them will make a purchase?

 

Is it asking for the probability that exactly 2 will make a purchase, or at least 2 will make a purchase? I'm not a probabilities guru, but it seems like those 2 answers would be different.

But, I vote for 0.09 as the answer.

 

Wrong (in either scenario).

I won't solve it for you, OP, but here's a hint: is it geometric or binomial distribution?

 

[QUOTE=mxt_77,Sep 10 2010, 03:31 PM]Is it asking for the probability that exactly 2 will make a purchase, or at least 2 will make a purchase?

 

[QUOTE=SIIK2NR,Sep 10 2010, 02:15 PM]from past experience the probability of any given customer making a purchase is 0.3.

 

You beat me to it. (In my defense, I was typing with one finger whilst trying to eat my (very late) lunch.)

 

not probably, but that that 2 will make a purchase.

 

i got 0.02835 probability.