Question

what is probability of the event that a no chosen from 1 to 50 is an odd no​

Answer 1

Answer:

Let's the sample space be 's'

S=( 2,4,6,8,10,12,.........,58,50)

n(s)=25

Answer 2

Answer:

No. of odd numbers b/w 1 to 50

Let the odd numbers be 1,3,5,7,9.....49

It forms an AP with 1 as its first term and 3 as its common difference 3.

What term of AP is 49

49= 1+ (n-1)3

49= 1+ 3n-3

49= 3n-2

3n=51

n=17

Hence, there are 17 odd numbers...

So P(E) getting odd no. = 17/50