In a game of chance, a spinnig arrow comes to rest at one of the numbers 1,2,3,4,5,6,7,8. All these are equally likely outcomes. Find the probability that it wil rest at an odd number.

In a game of chance, a spinnig arrow comes to rest at one of the numbers 1,2,3,4,5,6,7,8. All these are equally likely outcomes. Find the probability that it wil rest at 8.

In a game of chance, a spinnig arrow comes to rest at one of the numbers 1,2,3,4,5,6,7,8. All these are equally likely outcomes. Find the probability that it wil rest at a number less than 9.

In a game of chance, a spinnig arrow comes to rest at one of the numbers 1,2,3,4,5,6,7,8. All these are equally likely outcomes. Find the probability that it wil rest at a nubmer greater than 2.

A game of chance consists of spinning an arrow which comes to rest pointing at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8 (See figure), and these are equally likely outcomes. What is the probability that it will point at 8? (ii) an odd number? (iii) a number less than 9? (iv) a number greater than 2?

Two numbers are chosen from {1, 2, 3, 4, 5, 6, 7, 8} one after another without replacement. Then the probability that

A two digit number is formed with digits 2,3,5,7,9, without repetition. What is the probability that the number formed is an odd number?

Prove that 4n^(2)-1 is an odd number for all n in N

Five different digits from the set of numbers {1, 2, 3, 4, 5, 6, 7} are written in random order. Find the probability that five-digit number thus formed is divisible by 9.

On a normal standard dic one of the 21 dots from any one of the six faccs is removéd at random with each dot equally likely to be chosen. The die is then rolled. The probability that the top face has an odd number of dots is