Suppose Metro by T-Mobile wants to offer a simple extended warranty plan. If your phone is damaged, they will repair it for up to $50. If you lose or destroy your phone, they will give you a $200 voucher towards a new phone. The company believes that 5% of customers will need the replacement voucher and 10% will request a repair. What is the standard deviation?

Answers

Answer 1

Answer:

45

Step-by-step explanation:

Given that :

Voucher awarded (x) :

Repair = $50

Lose or destroy = $200

P(x):

Replacement voucher = 5%

Repair voucher = 10%

X ______ 50 ______ 200

P(x) ____ 0.1 _______ 0.05

Expected variance Var(X) :

ΣX²p(x) - E(x) ;

E(x) = Σx*p(x) = (50*0.1) + (200*0.05) = 15

ΣX²p(x) = Σ[(50^2 * 0. 1) + (200^2 * 0.05)] = 250 + 2000 = 2250

Var(X) = 2250 - 15^2 = 2025

Standard deviation = √Var(x)

Standard deviation = √2025

Standard deviation = $45


Related Questions

what is y+26(9-x)=290

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Answer:

y = 56 + 26x

Step-by-step explanation:

Round 431,857 to the nearest ten thousand

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Answer:

i don' think you can

Step-by-step explanation:

BRAINLIEST + FRIEND IF U ANSWER MY QUESTION!!

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Answer:

a or c

Step-by-step explanation:

mark me brainliest and friend me

Tell the next two terms in the sequence: 40, 10, 5/2, 5/8​

Answers

Answer:

5/32 & 5/128

Step-by-step explanation:

Write and equation of the line that contains the points below.
(-5, 4) and (-1, -8)

Answers

y= 3x-11 (slope-intercept form)

cynthia has earned 1,000 and wants to put it in a savings account that earns 5% simple interest assuming she makes no additional deposits or withdrawals what will be the total value of cynthias account after 48 months

Answers

Answer:

6746734

Step-by-step explanation:

first fo 45 minus 45 get 0 add then 56 plus 34

Answer:

1200

Step-by-step explanation:

1000(1+.05x4)

5%=.05

convert the months into years

Mr. Oliveros takes theater students to a play. Mr. Oliveros spends $45.00 in all.
He pays $10.00 for his ticket and spends the rest on student tickets. Each
student ticket is $2.50. How many student tickets does Mr. Oliveros buy?
Show your work.

Answers

Answer:

$45.00-$10.00=$35.00

2.50x14= $35.00

Therefore he bought 14 student tickets

What is 125x+200 on a number line

Answers

Answer:

125 (x+4)

Step-by-step explanation:

all you have to do is group the common factor

helppp this is due at 1:20

Answers

Answer:

Total Bill: $138

Step-by-step explanation:

115 * 1.20 = 138

Answer:

138

Step-by-step explanation:

115 × 20% = 23

115 + 23 = 138

Answer is 138

BRAINLIEST

esto es para mi amor aniyah por favor si no eres ella no respondas ... bebé te juro que no es así como quiero que me tienes enamorado ...
tan profundo en mis sentimientos ...
hasta ese punto donde el psin se hizo cargo ...
tengo miedo de amar
Tengo miedo de romperme ...
No quiero monja, así que dije que todo era falso ...
pero te prometo que no lo estaba ...
Lo siento..
Tuve que soltarme antes de que me uniera.
Eres muy hermosa ...
eres tan cariñoso amoroso ...
eres una maldita reina ...
No quería lastimarte pero sabía lo que estaba haciendo ...
Sabía que te estaría causando más dolor si me quedaba, no me conoces todo y realmente no quiero que lo hagas, por eso no me meteré en nada real, pero si me necesitas como amigo te prometo que te tengo mi amor a través de lo que sea necesitas....
Si no estás de humor, te ayudaré a superarlo, pero no puedo hacer nada serio y lo siento bebé, pero no dejaré que te rompas de nuevo ... te amo mamás

Answers

pie = she left you x=63 y=3728

Answer:

I love you too Drizz...

Step-by-step explanation:

help me please 20 pts.

Answers

Your answer is A.

Hope this helps and ha e a nice day!

Answer:

A) X<5

Step-by-step explanation:

The circle is open, and the line is pointing left meaning it is less than five.

Is the following relation a function? (-2,-2) (2,8) (3,2) (3,1) (7,-5)

Answers

No it is not.
Function cannot have different outputs for the same input
(3,2) and (3,1) have the same input but different outputs, not a function

help me plz .........
.​

Answers

Answer:

99

Step-by-step explanation:

(40+49)+10=89+10=99

5. A new cable company charges its customers by the number of channels they order.
The data shows the cable packages ordered the most.


Which linear equation best represents the model?

A. y=1/3x+7
B. y=3x+20
C. y=1/3x+20
D. y=3x+7

Answers

I would say letter C, sorry if I’m wrong but that is what I would say

Abbie has to do 25 math problems tonight. She has completed 40%. How many problems has she completed?

Answers

Answer:

10

Step-by-step explanation:

0.4*25

How do I solve this problem?

Answers

Answer:

4

Step-by-step explanation:

17-5=12/3=4 so yeah that is all you need to know

The answer 4 and I hope that helps

Please answer correctly !!!!!!!!!!! Will mark Brianliest !!!!!!!!!!!!!!!!!!

Answers

For ever 1 cat, there are 4 dogs.

Harmony pays $59.00 per month for a base cable package and an additional amount for on-demand programming. Last month, Harmony received a $62.44 cable bill.

$59.00 + x = $62.44

Ignoring sales tax and additional fees, how much did she spend for on-demand programming?
A. $121.44
B. $7.44
C. $3.44
D. $65.88

Answers

Answer: C

Step-by-step explanation:

suppose that when you factor 4t^6-r^10, you get (2t^x+r^y)(2t^x-r^y). determine the sum of t and r.

Answers

Answer:

8

Step-by-step explanation:

Given the expression

4t^6-r^10 we are to factorize in the form;

(2t^x+r^y)(2t^x-r^y)

First we need to factorize (2t^x+r^y)(2t^x-r^y)

[tex]= (2t^x+r^y)(2t^x-r^y)\\= 4t^{2x}-2t^xr^y + 2t^xr^y - r^{2y}\\= 4t^{2x}-r^{2y}[/tex]

Compare [tex]4t^{2x}-r^{2y} \ with \ 4t^6-r^{10}[/tex]

[tex]4t^{2x} = 4t^6\\t^{2x} = t^6\\equate \ the \ powers\\2x = 6\\x = 3\\[/tex]

Get y;

[tex]r^{2y} = r^{10}\\2y = 10\\y = 5\\Hence \ x + y = 3+5 = 8[/tex]

Hence the sum of x and y is 8

plzzz help me i hate math:(

Answers

Answer:

D

Step-by-step explanation:

Combine the fractions by finding a common denominator (A denominator shared by two or more fractions.)

the product of x and 5

Answers

Answer: The product of x and 5 is 5x

A new pair of shoes cost $78. They are on sale for $60.06.

What is the percent of change?

Answers

Answer: 23%

Step-by-step explanation:

From the question, we are informed that a new pair of shoes cost $78 and that they are on sale for $60.06.

The percent of change will be calculated as:

Change/ Cost price × 100

= [(78 - 60.06) / 78] × 100

= (17.94 / 78) × 100

= 0.23 × 100

= 23%

Draw the image of AABC under a translation by 3 units to the left and 3 units down.

Answers

Answer:

you will have to move the full shape 3 squares to the left (<--) and 3 squares down

Step-by-step explanation:

hope this helps

what is the whole number of 9​

Answers

Answer:

9/1

Step-by-step explanation:

Answer:

Um wym?

Step-by-step explanation:

Si en un grupo de 10 personas se va a repartir refrescos de 10 sabores diferentes, y se sabe que hay uno de fresa y uno de piña ¿cuál es la probabilidad que el primero en ser repartido sea de piña y el segundo de fresa?

Answers

Respuesta: 0.011

Explicación paso a paso:

Dado que:

Número de sabor a refresco = 10

Número de sabor a piña = 1

Número de sabor a fresa = 1

P (primero es fresa) = número de sabor a fresa / número total de sabor

P (primero es fresa) = 1/10

P (el segundo es sabor a piña) = número de sabor a piña / número total de sabor

P (segundo sabor a piña) = 1/9

Probabilidades independientes:

P (primero es fresa) * P (segundo sabor a piña)

= (1/10) * (1/9)

= 1/90

= 0.011

What is the area, in square meters, of the trapezoid below? I need help please.

Answers

Answer:

48.72

Step-by-step explanation:

you would have to use area for a trapezoid formula! which is

A=(a+b)/2 x h plug in your units and you get 48.72

One baseball team played 24 games throughout their entire season. If this baseball team
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nearest whole number if necessary.

Answers

They won 18 games in the season

34 ÷ [(7.2 × 0.8) + 3.24]

Answers

Answer:

the answer is 3.82 i think

Step-by-step explanation:

Find the unit rate


5 calculators cost $180


Mowed 6 yards for $30


10 chocolate bars cost $17


5 movie tickets cost $35

$19 for 5 books

200 bagels in 2 hours

56 people can ride the Ferris Wheel in 4 hours

5 cans of green beans for $3.20

3 pounds of bananas for $3.06

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Answers

The unit rate for the problem is 16

A cylinder has a height of 7 feet and a radius of 12 feet. What is its volume? Use ​ ≈ 3.14 and round your answer to the nearest hundredth.

Answers

V=3.14(12)^2(7)

Which equals 3165.1 (I believe)

Answer: 461.6 ft^3

Step-by-step explanation:

Substitute r and h into the volume formula. In this case, the height is 12, so h = 12. The diameter is 7, so the radius is half that, or 3.5. Substitute into the formula and simplify:  V=π(3.5)2(12)V=π(12.25)(12)V=147π

So the exact volume of the cylinder is 147π ft3

.

To find the approximate volume, substitute 3.14 for π

and simplify:V≈147(3.14)≈461.58

. Rounded to the nearest tenth, the approximate volume of the cylinder is 461.6 ft3

.

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