Question

Probability that you will get 3 red lights in a set of five lights?(red lights dont have to be in order)

Answer 1

p(E)=n(E)/n(S)
E= no. of tims event has occured
S is sample space
here n(E)=3
n(S)=5
put the values in above eqn.

Answer 2

what do p and n mean?

Answer 3

p=probability
n is number of..

Answer 4

that is n(E)=no. of times event has occured nd n(S) is num. of sample space

Answer 5

are they variables?

Answer 6

yes

Answer 7

so n and p are also variables?

Answer 8

i think dis que is incomplete,it doesnt say, what color lights are there in the five lights set