Question

An integer is chosen between 0 and 100. What is the probability of divisible by 9 & not divisible by 9 ?

Answer 1

Answer:

Hello mate,

Here is your answer,

There are 99 integers between 0 and 100

Numbers divisible by 7 = 7, 14, 21......98

Total no: of outcomes = 14

P(divisible by 7) = 14/99

P(not divisible by 7) = 1-44/99

= 85/99

Answer 2

Answer:

Step-by-step explanation:

let A be the event of integer divisible by 9

So,no of integers from 1 to 100 divisible by 9 is 100/9

n(A)=100/9

n(A)=11(1/9) a fraction

We willl only consider the whole number

i.e. 11

Let S be the sample space

n(S)=Total no of integers

n(S)=100

P(A)=n(A)/n(S)=11/100

Let the event of not getting divisible by 9

be A'

P(A')=1-P(A)

P(A')=1-11/100

P(A')=89/100