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Tema [17]
3 years ago
9

Let x be the total number of customers in a one-hour interval and y be the total number of female customers in the same interval

. find the joint pmf of x and y.
Mathematics
1 answer:
miskamm [114]3 years ago
3 0
X/Hr and they want number of female customers in the same hours Y/Hr.
They give you two variables and they want you to find the probability of two variables X and Y is there more to the Question? what are they asking?
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How do you write 5 times the sum of D and 4
Law Incorporation [45]
5(d+4) would be the correct answer.

4 0
3 years ago
In the system of equations below, which variable would it be easiest to solve for?
Maru [420]

Answer:

<h3>     The first: The easiest to solve for is x in the first equation.</h3>

Step-by-step explanation:

To get x from first equation  you just need to subtract 4y from both sides.

The rest of variables needs two operations to get variable - subtracting and then dividing.

7 0
3 years ago
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Please answer!!
Liula [17]

Answer first three words

Step-by-step explanation:

8 0
3 years ago
A. 12 <br> b. 14<br> c. 8<br> d. 6
jolli1 [7]

Answer:

  d.  6

Step-by-step explanation:

The product of lengths to the near and far intersection points is the same for both secants:

  PB×PA = PD×PC

We can use this relation to solve for x, then use the value of x to find PD.

  7×12 = (3x)(7x)

  4 = x² . . . . . . . . . divide by 21

  2 = x . . . . . . . . . . take the square root

__

  PD = 3x = 3·2

  PD = 6

5 0
4 years ago
An engineer estimated the weight of a steel beam to be 600 pounds. The actual weight of the beam was 639 pounds. Find the absolu
mario62 [17]

Answer:

Absolute error = 39

Percent Error = 6.10%

Step-by-step explanation:

Actual value = 639 pounds

Observed Value = 600 pounds

The formula to find absolute error is:

Absolute Error = Actual value - Observed Value

                        = 639 - 600

                        = 39

The formula to find Percent error is:

Percent Error = (Actual value - Observed Value / Actual value)*100

                       = (639 - 600/639)*100

                       = 6.10%

                 

7 0
3 years ago
Read 2 more answers
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