A privately owned liquor store operates both a drive-in facility and a walk-in facility.
On a randomly selected day, let X and Y, respectively, be the proportions of the time that the drive-in and walk-in facilities are in use, and suppose that the joint density function of these variables is
0, elsewhere.
a. Find the marginal density of X.
b. Find the marginal density of Y.
c. Find the probability that the drive-in facility is busy less than one-half of the time.
Compute P(X) using the binomial probability formula. Then determine whether the normal distriution can be used to estimate this probability. If so, approximate P(X) using the normal distriution and compare the result with exact probability.
For
(Round to four decimal plases as needed.)
Can be normal distriution be used to approximate this probability?
A. Yes, because
B. No, because
C. No, because
D. Yes, because
Suppose
a) .3828
b) .8497
c) .4059
d) .6496
A binomial probability is given. Write the probability in words. Then, use a continuity correction to convert the binomial probability to a normal distribution probability.
Write the probability in words.
The probability of getting ? 114 successes.
Which of the following is the normal probability statement that corresponds to the binomial probability statement?
A)
B)
C)
D)
E)