The number of apps a developer sells daily has the probability distribution represented in the table.


Number of Apps, x | 0 20 40 60 80 100
P(x) 0.05 0.25 | 0.18 0.12 0.3 0.1

If each app sells for $5.99, what is the expected daily total dollar amount taken in by the developer from the sale of apps?
A. $5.99
B. $53.40
C. $59.90
D. $314.22
E. $319.87

The Number Of Apps A Developer Sells Daily Has The Probability Distribution Represented In The Table.Number

Answers

Answer 1

Answer:

Total amount taken in by the depeloper from the sale of apps = sum(5.99 * x * P(x))

= 5.99*0*0.05 + 5.99*20*0.25 + 5.99*40*0.18 + 5.99*60*0.12 + 5.99*80*0.3 + 5.99*100*0.1

= 319.87

Ans: $319.87

Step-by-step explanation:

Answer 2

The expected daily total dollar amount taken in by the developer from the sale of apps is $319.87 option (E) is correct.

What is uniform distribution?

The continuous uniform distribution, sometimes known as the rectangle distribution, is a family of symmetric probability distributions in probability theory and statistics.

We have:

The number of apps a developer sells daily has the probability distribution represented in the table:

Number of Apps, x       0      20    40     60      80    100

P(x)                              0.05  0.25  0.18   0.12     0.3     0.1

Each app sells for $5.99

We can calculate the expected daily total dollar amount taken in by the developer from the sale of apps:

The total amount is taken in by the developer from the sale of apps:

= sum(5.99x[P(x)])

= 5.99×0×0.05 + 5.99×20×0.25 + 5.99×40×0.18 + 5.99×60×0.12 +

   5.99×80×0.3 + 5.99×100×0.1

= 0 + 29.95 + 43.128 + 43.128 + 143.76 + 59.9

= 319.866 ≈ $319.87

Thus, the expected daily total dollar amount taken in by the developer from the sale of apps is $319.87 option (E) is correct.

Learn more about the uniform distribution here:

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Related Questions

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Answers

Answer:

the value of these two numbers are 1/2 and 3/2

Step-by-step explanation:

Given that:

x+y < 2 ---- (1)

y - x > 1 ---- (2)

From equation (2), let y  > 1 + x then substitute it into equation (1)

x + 1 + x < 2

2x + 1 < 2

2x < 2 - 1

2x < 1

x < 1/2

From equation (2), replace the value of x to be 1/2

y - 1/2 > 1

y > 1 + 1/2

y > 3/2

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Answers

Answer:

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Step-by-step explanation:

Answer:

4/5

Step-by-step explanation:

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Second is x
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Fourth is z
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Answers

Answer:

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Step-by-step explanation:

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Answer:

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A.32 and 2/3
B.5/6 and 10/12
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Answers

Answer:

B.5/6 and 10/12

Step-by-step explanation:

   The given values are;

          [tex]\frac{5}{6}[/tex]   and  [tex]\frac{10}{12}[/tex]  

   [tex]\frac{10}{12}[/tex]  ,

    reducing to the smallest term by dividing by 2;

       is   [tex]\frac{5}{6}[/tex]  

So;

  [tex]\frac{5}{6}[/tex]   and  [tex]\frac{10}{12}[/tex]   are both like fractions.

A bag contains 5 red marbles and 10 blue marbles. If Jen selects a marble from the bag without looking, what is the probability that she will not pull out a red marble?

Answers

Answer:

since there is more blue marbles in the bag, she will have a higher chance of pulling out a blue marble instead of red, since there are less red marbles she has a lower chance of getting a red marble.

Step-by-step explanation:

Which equation below and solution for X does the model represent??

A) 2x + 2x = 85, x = 42.50

B) 4 + x = 85, x = 21.25

C) x + x + x + x = 85, x = 21.00

D) 4x = 85, x = 21.25

Answers

Answer:

D) 4x=85, x=21.25

Step-by-step explanation:

If the total is 85$, and every shirt costs the same amount, then you would divide 85 by 4.

That will leave you with 21.25 per shirt.

Answer:

D) 4x = 85, x = 21.25

Step-by-step explanation:

D) 4x = 85, x = 21.25

4x = 85

4       4

x = 21.25

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d. 1=-x^2: One solution because only -1 will satisfy the equation.​

Answers

1=x²: two solutions because the square root of 1 is positive 1 and negative 1

Answer:

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Step-by-step explanation:

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Answer:

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Answers

Answer:

a = 24

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Answer:

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Step-by-step explanation:

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Answers

Answer:

Commission percent = 3 % (Approx)

Step-by-step explanation:

Given:

Amount of commission = $500

Sales price of car = $17,250

Find:

Commission percent

Computation:

Commission percent = [Amount of commission/Sales price of car]100

Commission percent = [500/17,250]100

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Answers

Answer:

DFE = 23

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Step-by-step explanation:

Mathematically;

(3x-10) + 46 + 180 - (5x + 14) = 180

Reason for this is that sum of angles in a triangle is 180

Thus;

3x-10 + 46 - 5x-14 = 0

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Answers

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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Answers

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Step-by-step explanation:

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All of the following expressions simplify to -5x + 7, except ( x - 2) - (6 x - 9) (5 x + 1) - (-10 x + 6) -4 x + 2 x + 7 - 3 x (4 x + 3) + (-9 x + 4) hurry will give brainlest

Answers

Answer:

(5 x + 1) - (-10 x + 6)

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Step-by-step explanation:

(x - 2) - (6x - 9)

x - 2 - 6x + 9 =

-5x +7

(5 x + 1) - (-10 x + 6)

5x +1 + 10x - 6

25x - 5

-4 x + 2 x + 7 - 3 x

-5x + 7

(4 x + 3) + (-9 x + 4)

4x +3 -9x + 4

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What is Expression?

A mathematical operation such as subtraction, addition, multiplication, or division is used to combine terms into an expression. In a mathematical expression, the following terms are used:

An absolute numerical number is referred to as a constant.Variable: A symbol without a set value is referred to as a variable.Term: A term can be made up of a single constant, a single variable, or a mix of variables and constants multiplied or divided.Coefficient: In an expression, a coefficient is a number that is multiplied by a variable.

Given:

1. (x - 2) - (6x - 9)

= x - 2 - 6x + 9

= -5x +7

2. (5 x + 1) - (-10 x + 6)

= 5x +1 + 10x - 6

= 25x - 5

3. -4 x + 2 x + 7 - 3 x

= -5x + 7

4. (4 x + 3) + (-9 x + 4)

= 4x +3 -9x + 4

= -5x + 7

Learn more about Expression here:

https://brainly.com/question/14083225

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Step-by-step explanation:

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Step-by-step explanation:

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Answers

solution

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Answers

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Step-by-step explanation:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Answers

Answer:

[tex]the \: top \: one \: is \: {17}^{ - 9} \\ the \: bottom \: one \: is \: 0[/tex]

Step-by-step explanation:

For the top one follow the steps below.

[tex] \frac{( {17}^{3} {)}^{6} + {17}^{ - 10} }{ {17}^{8} } \\ \frac{ {17}^{9} + {17}^{ - 10} }{ {17}^{8} } \\ \frac{ {17}^{ - 1} }{ {17}^{8} } \\ {17}^{ - 1} + {17}^{ - 8} \\ {17}^{ - 9} [/tex]

For the bottom one follow the steps below.

[tex]( {17}^{6} {)}^{3} + {17}^{ - 9} \\ {17}^{9} + {17}^{ - 9} \\ 0[/tex]

Answer:

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Step-by-step explanation:

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184

Step-by-step explanation:

Answer:

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Step-by-step explanation:

In 2011, a professional climber scaled the outside of Burj Khalifa making it all the way to 828 meters in 6 hours. how far did they climb in the first 2 hours?

Answers

Given:

Professional climbers climb 828 meters in 6 hours.

To find:

how far did they climb in the first 2 hours?

Solution:

According to the question,

In 6 hours, they climb 828 meters.

In 1 hour, they climb [tex]\dfrac{828}{6}[/tex] meters.

In 2 hour, they climb [tex]2\times \dfrac{828}{6}[/tex] meters.

Now, the distance they climb in the first 2 hours is

[tex]\text{Climb in first two hours}=2\times \dfrac{828}{6}[/tex]

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Answers

Answer: 926

Step-by-step explanation:

1. 920- 444= 476

2. 476+450= 926

3. 926

Answer:926

Step-by-step explanation:because 920 - 444 = 476 + 450 = 926

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