Mathematics, 12.08.2020 07:01 sharnisefrazier
Let X denote the number of Canon digital cameras sold during
a particular week by a certain store. The pmf of X is
x | 0 1 2 3 4
pX(x) | .1 .2 .3 .25 .15
Sixty percent of all customers who purchase these cameras
also buy an extended warranty. Let Y denote the number of
purchasers during this week who buy an extended warranty.
a. What is P(X =4, Y = 2)? [Hint: This probability equals
P(Y = 2 I X = 4) * P(X = 4); now think of the four purchases
as four trials of a binomial experiment, with success
on a trial corresponding to buying an extended warranty.]
b. Calculate P(X = Y).
c. Determine the joint pmf of X and Y and then the marginal
pmf of Y.
Answers: 3
Mathematics, 21.06.2019 14:30
Factor. 8x2y2 β 4x2y β 12xy 4(8x2y2 β x β 12xy) 4(2xy β 4x2y β 12xy) 4x2y2(2xy β xy β3) 4xy(2xy β x β 3)
Answers: 2
Mathematics, 21.06.2019 18:30
What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)
Answers: 1
Let X denote the number of Canon digital cameras sold during
a particular week by a certain store....
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