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

4400

step-by-step explanation:

1/3

step-by-step explanation:

to find this, you can divide 12 by 4 which is 3 or you can multiply 4 until you reach 12 (4x3=12). both should give you 3, meaning theres three times less bananas than there are oranges.