Question

what is the probability that a number selected from the number 1,2,3....20 is not a multiple of 3
give me step by step please​

Answer 1

formula is p(E)=n(A)/n(S)

Step-by-step explanation:

n(S)=20,n(A)=14

S={1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20}

P(A)={1,2,4,5,7,8,10,11,13,14,16,17,19}

P(E)=14/20

=7/10

=3.5/5

P(E) =0.7

HOPE THIS WILL HELP YOU!!!!