Ask question

Ask question

All categories

3 years ago

13

Suppose the sample space for a continuous random variable is 0 to 80. If the area under the density curve for the variable from

0 to 5 is 0.0625, what is the area under the density curve from 5 to 80?
A. 0.9375
B. 0.975
C. 0.375
D. 0.99375

1 answer:

nikklg [1K]3 years ago

4 0

Hello,

Area under the curve is 1.

So p(x>5)=1-p(x<5)=1-0.0625=0.9375

Answer A

You might be interested in

The area of a circle is 28.26 square miles. What is the circle's diameter?

DochEvi [55]

The diameter is 6. Explanation:

radius: 3.14r^2

28.26=3.14r^2

28.26/3.14=r^2

r^2=9

r=3

and we know that diameter is two times the radius so:

3*2=6

diameter equals 6.

if you want to check it plug back in:

3^2 * 3.14 = 28.26

hope this helped :)

3 0

2 years ago

When the Defense Department ordered 132 new airplanes, the cost per plane was estimated to be $580 million. A cut in the order t

aliina [53]

Answer:

C. The loss of economies of scale

By definition represent "the cost advantages that enterprises obtain due to their scale of operation, with cost per unit of output decreasing with increasing scale" and thats the corrct option since if we increase the order we have a lower price.

Step-by-step explanation:

Assuming the following options we analyze one by one to select the correct one

A. A move to minimum efficient scale

By definition the minimum efficient scale (MES) or efficient scale of production is "the lowest point where the plant can produce such that its long run average costs are minimized" but thats not the case since the department order new planes and the costs are not minimized .

B. The law of diminishing returns

The law of diminishing marginal returns says that "at some point, adding an additional factor of production results in smaller increases in output" but that's not the case since we don't have smaller increases in output.

C. The loss of economies of scale

By definition represent "the cost advantages that enterprises obtain due to their scale of operation, with cost per unit of output decreasing with increasing scale" and thats the corrct option since if we increase the order we have a lower price.

D. An increase in fixed cost

That's False since on this case we don't have a fixed cost, the cost on this case depend on the size of the order.

4 0

3 years ago

A student driver working with uber works for 20 hours. how many units can he/she register for as per 60 hour rule?

Radda [10]

I think it is 3 units

7 0

3 years ago

Solv for x for all of these 1. 3x+6=21 2. 33=7x-9 3. 28=7+x need to know now please help !!!!!!

-Dominant- [34]

Answer:

<h3> $\boxed{ \sf{ \bold{1. \: \: \: x = 5}}}$ </h3>

$\boxed{ \sf{ \bold{2. \: \: x = 6}}}$

$\boxed{ \bold{ \sf{3. \: \: x = 21}}}$

Step-by-step explanation:

1. $\sf{3x + 6 = 21}$

Move constant to right hand side and change its sign

⇒ $\sf{3x = 21 - 6}$

Subtract 6 from 21

⇒ $\sf{3x = 15}$

Divide both sides of the equation by 3

⇒ $\sf{ \frac{3x}{3} = \frac{15}{3} }$

Calculate

⇒ $\sf{x = 5}$

--------------------------------------------------------

2. $\sf{33 = 7x - 9 }$

Swap the sides of the equation

⇒ $\sf{7x - 9 = 33}$

Move constant to right hand side and change it's sign

⇒ $\sf{7x = 33 + 9}$

Add the numbers

⇒ $\sf{7x = 42}$

Divide both sides of the equation by 7

⇒ $\sf{ \frac{7x}{7} = \frac{42}{7} }$

Calculate

⇒ $\sf{x = 6}$

---------------------------------------------------------

3. $\sf{28 = 7 + x}$

Swap the sides of the equation

⇒ $\sf{7 + x = 28}$

Move constant to right hand side and change it's sign

⇒ $\sf{x = 28 - 7}$

Subtract 7 from 28

⇒ $\sf{x = 21}$

Hope I helped!

Best regards!!

7 0

3 years ago

The figure show the dimensions of a city park in feet.

Soloha48 [4]

Answer:

73,084

Step-by-step explanation:

3 0

3 years ago