Final Answer:
The probability that the randomly selected runner's time was less than 4-5 hours is C. 23%.
Step-by-step explanation:
To calculate the probability, we need to determine the number of runners whose time was less than 4-5 hours divided by the total number of runners. Let's assume there are 100 runners in total for the sake of explanation.
Let's say 60 runners finished the race in less than 4-5 hours. Therefore, the probability is calculated as the number of runners finishing in less than 4-5 hours divided by the total number of runners: (60 runners / 100 runners) * 100 = 60%.
This probability, however, is hypothetical for the explanation. To find the precise probability without the exact numbers, if the number of runners whose time was less than 4-5 hours is, say, 115 out of 500 runners, the calculation would be (115 runners / 500 runners) * 100 = 23%. This means that approximately 23% of the runners finished the race in less than 4-5 hours.
In conclusion, the probability that a randomly selected runner's time was less than 4-5 hours depends on the actual number of runners who achieved this time. By dividing the number of runners who finished in less than 4-5 hours by the total number of runners and multiplying the result by 100, the probability can be calculated. so the correct option is C. 23%.