Question

Kevin measured how many times he arrived to work late if he took subway. the results are provided in the following table. Find the probability that Kevin will arrive on-time tomorrow if he plans to take subway. (round the answer to 2 decimal places)

Answer 1

86.67%

Step-by-step explanation

We want to find the probability that Kevin will arrive on time if he plans to take the subway.

To find this, we have to divide the number of times that Kevin was on-time by the total number of times that he took the measurement.

We have that out of 30 days that Kevin was on-time on 26 occasions.

Therefore, the probability that Kevin will arrive on-time the next day is:

`\begin{gathered} P(on-\text{time) = }(26)/(30)\text{ = }(13)/(15) \\ P(on-\text{time) = 86.67\%} \end{gathered}`

That is the answer.