You are not logged in.
Pages: 1
A restaurant operates both a drive-in facility and a walk-in facility. On a randomly
selected day, let X and Y respectively be the portions of the time that the drive-in and
walk-in facilities are in use, and suppose that the joint density function of these
random variables is:
, =
23
+2, 0 ≤ ≤ 1,0 ≤ ≤ 1
0, ℎ
a. Find the marginal density function of X and Y.
b. Find the probability that the drive-in facility is busy less than one-half of the
time
A bag contains 14 identical balls, 4 of which are red, 5 black and 5 white. 6 balls are
drawn from the bag. Find the probability that,
a. Three are red.
b. At least 2 are white.
Pages: 1