1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Levart [38]
4 years ago
9

A shipping company handles containers in three different sizes: (1) 27 ft3 (3 × 3 × 3), (2) 125 ft3, and (3) 512 ft3. Let Xi (i

= 1, 2, 3) denote the number of type i containers shipped during a given week. With μi = E(Xi) and σi2 = V(Xi), suppose that the mean values and standard deviations are as follows: ?1 = 230 ?2 = 240 ?3 = 120?1 = 11 ?2 = 12 ?3 = 7(a) Assuming that X1, X2, X3 are independent, calculate the expected value and variance of the total volume shipped. [Hint: Volume = 27X1 + 125X2 + 512X3.]expected value ft3variance ft6(b) Would your calculations necessarily be correct if the Xi's were not independent? Explain.The expected value would not be correct, but the variance would be correct. Neither the expected value nor the variance would be correct. The expected value would be correct, but the variance would not be correct.Both the expected value and the variance would be correct.
Mathematics
1 answer:
inysia [295]4 years ago
6 0

Answer:

Sorry I have no idea lol. I hope you find your answer soon.

You might be interested in
I need help with this question
Tamiku [17]

Answer:

4

Step-by-step explanation:

Go to where it says -8 on the y-axis then rise 4 and run 1

6 0
3 years ago
Read 2 more answers
The question is down below in the picture.
bagirrra123 [75]

Answer:

ion kno lil bra

Step-by-step explanation:

4 0
4 years ago
Una empresa fabrica dos modelos de DVD: el modelo A y el modelo B. Se dispone de 50 kilogramos de caucho y de 80 horas de mano d
alexandr1967 [171]

Answer:

¿Cuántos DVD de cada tipo debe fabricar y vender para que la utilidad sea máxima?

Se debe fabricar y vender 20 DVD del modelo A y 30 DVD del modelo B. La utilidad máxima es de de S/. 1 800

Step-by-step explanation:

x : Número de DVD del modelo A

y : Número de DVD del modelo B.

                               MODELO A MODELO B TOTAL

Cantidad de caucho                  1x 1x                 50 kg.

Horas de mano de obra           1x 2x                 80 horas

U : Utilidad mensual.

La función objetivo, que se debe maximizar, es:

U=30   + 40y

x+ y \leq 50\\  

x + 2y \leq 80

x\geq 0

y\geq 0

Las coordenadas de los vértices de la región factibles son:

A (0, 0) B (50, 0) C (20, 30) D(0, 40)

Entonces, se evalúa la función objetivo en cada punto:

U (0, 0) = 30 (0) + 40 (0) = 0

U (50, 0) = 30 (50) + 40(0) = 1500

U (90, 0) = 30 (20) + 40 (30) = 1800

U (0, 40) = 30 (0) + 40 (40) =1600

Por consiguiente U tiene un valor máximo en C , en donde: x =20 ,  y = 30 .

Se debe fabricar y vender 20 DVD del modelo A y 30 DVD del modelo B. La utilidad máxima es de de S/. 1 800.

 

 30 x  40 y

 

s.a.

 



   x  0 (3)

 

  y  0 (4)

3 0
3 years ago
How many inches did the height of the plant increase between weeks 3 and 4?
Iteru [2.4K]
The plant increased a total of 4 inches. 

Week 3, the plant was 8in and week 4, the plant was 12in.

To find our solution, subtract 8 from 12

12-8=4
8 0
3 years ago
Read 2 more answers
Stuffed animals way weighing 1/4 pound are on a scale. The scale shows 1 1/2 pounds. How many stuffed animals are on the scale?
blsea [12.9K]
Https://www.education.com/activity/article/Size_Your_Stuffed_Animal/

This^ website tells you the answer at the bottom.
Thanks
:)

3 0
4 years ago
Read 2 more answers
Other questions:
  • Julio ran 17 miles less than Adam last week.julio ran 13 miles how many miles did Adam run?
    14·2 answers
  • 2x + 2y + 2z<br> what does this equal
    7·1 answer
  • What’s the sum of interior angles of a 45-gon?
    8·1 answer
  • In ABC, the measure of sides c is 3.9 cm If DEF is a dilation ABC with a scale factor of 2.5 what is the measure of side f
    5·1 answer
  • Suppose that an individual has a body fat percentage of 16.4% and weighs 129 pounds. How many pounds of his weight is made up of
    15·2 answers
  • Which model best fits the set of data shown on this graph?
    11·2 answers
  • Hector took out a small loan of $900 for 18 months (remember to turn this into
    9·1 answer
  • Can someone smart help? ill give brainliest
    12·1 answer
  • How many 1/4 cup servings are in an 8 -cup box of cereal? 32 servings 1/4 servings 6 servings 2 servings?​
    5·2 answers
  • Help please there are 2
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!