Question

I forgot how to do this...

Answer 1

@Snehaa @Bunny12

Answer 2

this was waay too long ago

Answer 3

@Snehaa

Answer 4

@marcelie ?

Answer 5

@zepdrix

Answer 6

@ganeshie8 @jabez177 @hartnn

Answer 7

This is a binomial probability. Use the formula for binomial probability.

Probability of red is 0.4
total is 15
you want 6 reds

Answer 8

That's what i thought, but that's not one of the choices

Answer 9

what formula did you use?

Answer 10

P(k successes in n trials) = nCk p^k n^(q-k)

where p = probability of a success( in this case its picking a red) and q = probiliaty of NOt red

Answer 11

sorry theres a mistake the formula should be

nCk p^k q^(n-k)

Answer 12

so plugging in the values>-

P = 15C6 * 0.4^6 * 0.6^(15-6)