Mathematics, 15.04.2020 02:27, ashley54899
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 probability density function of these random variables is given by:
f(x, y) {2/3(x+2y), 0 <= x <= 1, 0<= y <= 1
{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 lessthan one-half of the time.
Answers: 1
Mathematics, 21.06.2019 17:00, joshuag5365
Of the ones listed here, the factor that had the greatest impact on the eventual destruction of native americans' ways of life was the development of the a) automobile. b) highway. c) railroad. d) steamboat.
Answers: 3
Mathematics, 21.06.2019 21:00, Anybody6153
Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1โ0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.
Answers: 1
A privately owned liquor store operates both a drive-in facility and a walk-in facility. On a random...
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