Question

If a number from 1 to 15 is chosen at random, find the probability of choosing an even number​

Answer 1

Answer:

Step-by-step explanation:

1. Total Prime numbers = 6 (2,3,5,7,11,13)

So, P(E1) = 6/15 = 2/5

2. Total Even numbers = 7 (2,4,6,8,10,12,14)

So, P(E2) = 7/15

3. Total numbers which are divisible by 5 = 3 (5,10,15)

So, P(E3) = 3/15 = 1/5

4. Total numbers which are divisible by 2 and 5 = 1 (10)

So, P(E4) = 1/15

Answer 2

Answer:

7/15

Step-by-step explanation:

fav. outcome = 7

total no. of possible outcomes =15

P(E) = ( fav. outcome)/ total outcomes

= 7/15