Question

Minh has a number cube. It has a different number on each side: 4,5,6,7,8, or 9. Minh will roll the number cube once. What is the probability he will roll a 5

Answer 1

Explanation:

B

Answer 2

The probability that Minh will roll a 5 is 1/6

Explanation:

The number of events = Minh rolls 4 + Minh rolls 5 + Minh rolls 6 + Minh rolls 7 + Minh rolls 8 + Minh rolls 9 = 6 events

The number of required outcome = Minh rolls 5

The probability, P, of an event occurring is defined as follows;

`P= (Number \, of \ required \ outcomes)/(Number \, of \ possible\, outcomes)`

Which gives for the probability, P₅, that when Minh roll the number cube one he will roll a 5, we have

The number of possible outcomes = The number of events = 6

The number of required outcome = 1

Therefore;

`P_5= (1)/(6)`

Therefore, the probability that Minh will roll a 5 = 1/6.