Of the last 20 trains to arrive at Danville Station, 15 were on time. What is the experimental probability that the next train to arrive will be on time?

Answer 1

The experimental probability is:

Number of on-time trains / Total number of trains

Since 15 out of the last 20 trains were on time, this means:

Number of on-time trains = 15

Total number of trains = 20

Therefore, the experimental probability that the next train to arrive will be on time is:

15/20 = 0.75 or 75%