Question

If the probability that a person will not like a new tooth paste is 0.20. what is the probability that 5 out of 10 randomly selected persons will dislike it?​

Answer 1

20/100×5=1

n(E)=1

n(S)=5

P(E)=n(E)/n(S)

=1/5

The probability that 5out of 10 that randomly selected persons dislike it is 1/5