Question

Question

Allison rolls a standard number cube 30 times and records her results. The number of times she rolled a 4 is 6. What is the experimental probability of rolling a 4? What is the experimental probability of not rolling a 4?

P(4) =
p(not 4)=

Answer 1

P(4) = 0.2 or 20%.

p(not 4)= 0.8 or 80%

Explanation:

To calculate the experimental probability of rolling a 4, we divide the number of times a 4 was rolled (6) by the total number of rolls (30).

Experimental probability of rolling a 4:

P(4) = Number of favorable outcomes / Total number of outcomes

= 6 / 30

= 1 / 5

= 0.2

Therefore, the experimental probability of rolling a 4 is 0.2 or 20%.

To calculate the experimental probability of not rolling a 4, we subtract the probability of rolling a 4 from 1.

Experimental probability of not rolling a 4:

P(not 4) = 1 - P(4)

= 1 - 0.2

= 0.8

Therefore, the experimental probability of not rolling a 4 is 0.8 or 80%.