A is the answer...............
Answer:
a) Computing the expected value E(XY) gives 1/4
b) The probability density function fZ(z) of Z = XY is calculated in the attached picture.
c) Computing E(Z) gives 1/4
Step-by-step explanation:
Comparing the computation of E(Z) using the answer to b), it shows that the values are equal.
Question is vague.
to solve for x:
subtract 10 on both sides
y - 10 = 8x
isolate the x, so divide the coefficient
(y - 10)/8 = x
to solve for y:
y = 8x + 10
Answer:
The apricots are $2.24 less expensive per pound.
Step-by-step explanation:
To find the price per pound of each product divide the price Dorian by the number of pounds Dorian bought:
Almonds: 21.98 ÷ 2 = 10.99
Almonds cost $10.99 per pound.
Apricots: 26.25 ÷ 3 = 8.75
Apricots cost $8.75 per pound.
The apricots are less expensive per pound. To find how much less expensive they are compared to the almonds, subtract the cost of the apricots per pound from the cost of the almonds per pound:
10.99 - 8.75 = 2.24
The apricots cost $2.24 less per pound than the almonds do.
Since they give updates every 18 minutes, thus any time being a multiple of 18 after 2 pm will be the time they give update.
5:30 pm is 3 hours 30 minutes for 2 pm or 150 minutes from 2 pm.
In 150 minutes, there are eight 18 minutes that have passed and is remaining 6 minutes for the next multiple of 18.
Therefore, you have to wait for 6 minutes for the next weather update.
