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Sanjay will roll a fair die a total of 90 times. What is a good prediction for the number of times that the number cube will land on a numbe

Home/Math/Sanjay will roll a fair die a total of 90 times. What is a good prediction for the number of times that the number cube will land on a numbe

Sanjay will roll a fair die a total of 90 times. What is a good prediction for the number of times that the number cube will land on a numbe

Question

Sanjay will roll a fair die a total of 90 times. What is a good prediction for the number of times that the number cube will land on a number greater than 2?

4 of the 6 numbers on a number cube are greater than 2, so the theoretical probability of a number greater than 2 is 4/6 = 2/3. We expect 2/3 of the 90 die rolls to be greater than 2:

2/3 × 90 = 60

We predict 60 die rolls will land on a number greater than 2.

## Answers ( )

Answer:60

Step-by-step explanation:4 of the 6 numbers on a number cube are greater than 2, so the theoretical probability of a number greater than 2 is 4/6 = 2/3. We expect 2/3 of the 90 die rolls to be greater than 2:

2/3 × 90 = 60

We predict 60 die rolls will land on a number greater than 2.