Question

In a game of chance there is spinning of an arrow which comes to rest pointing at one of the numbers 1, 2, 3, 4, 5, 6, 7, 8 and there are equally likely outcomes. What is the probability that it will point at a number less than 9



1/8
1
1/9


please help me!​

Answer 1

Answer:

We know that,

Probability = Number of possible outcomes/Total number of favorable outcomes.

Total possible outcomes = 8

(i) Probability of getting 8 = Probability of getting 8 / Total number of outcomes

Probability of getting 8 = 1/8

(ii) Total number of odd numbers = 1, 3, 5, 7 = 4

Probability of getting odd number = Total number of odd numbers/Total number of outcomes

= 4/8 = 1/2

(iii) The numbers that are greater than 2 are 3, 4, 5, 6, 7, 8 = 6

Probability of getting numbers greater than 2 = Numbers greater than 2/Total number of outcomes

= 6/8

= 3/4

(iv) The numbers less than 9 are 1, 2, 3, 4, 5, 6, 7, 8 = 8

Probability of getting numbers less than 9 = Numbers lesser than 9/Total number of outcomes

= 8/8 = 1