Question

An activity has probabilistic completion times of 20, 30, and 46. What is its mean time?

A) 16
B) 43
C) 21
D) 31
E) None of these

Answer 1

The mean time for the activity with times of 20, 30, and 46 is found to be 32 after adding the times and dividing by the quantity of times given. Since 32 is not an option, the answer is E) None of these.

Step-by-step explanation:

The question requires calculating the mean time for a probabilistic activity with given completion times. The mean time is the average of the provided times, which is the sum of the times divided by the number of different times provided.

To calculate the mean time for the given times (20, 30, 46), you would perform the following calculation:

1. Add the times together: 20 + 30 + 46 = 96.
2. Divide the sum by the number of times provided, which in this case is 3: 96 / 3 = 32.

Therefore, the mean time for the activity is 32, which is not listed in the provided options, so the correct answer is E) None of these.