Two telephone calls come into a switchboard at random times in a fixed one-hour period. Assume that the calls are made independently of one another. (a) What is the probability that the calls are made in the first quarter hour

0.25

Step-by-step explanation:

From the given information:

Since the times are uniform distributed over the one hour period (0,1):

Then;

So, and are independent; then:

= 0.25

mark other person brainliest

4a. is 3 miles every hour

4b. is 1/3 of an hour per mile

step-by-step explanation: