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
Marat540 [252]
3 years ago
9

In European roulette, the wheel is divided into 37 compartments numbered 1 through 36 and 0. (In American roulette there are 38

compartments numbered 1 through 36, 0, and 00.) One-half of the numbers 1 through 36 are red, the other half are black, and the number 0 is green. Find the expected value of the winnings on a $8 bet placed on red in European roulette. (Round your answer to three decimal places.)
Mathematics
1 answer:
adelina 88 [10]3 years ago
3 0

Answer:

The expectation is -$0.216.

Step-by-step explanation:

Consider the provided information.

In European roulette, the wheel is divided into 37 compartments numbered 1 through 36 and 0.

One-half of the numbers 1 through 36 are red, the other half are black, and the number 0 is green.

We need to find the expected value of the winnings on a $8 bet placed on red in European roulette.

Here the half of 36 is 18.

That means 18 compartments are red and 18 are black.

The probability of getting red in European roulette is 18/37

The probability of not getting red in European roulette is 19/37. Because 18 are black and 1 is green.

If the ball lands on a red number, the player wins the amount of his bet.

The favorable outcomes are 18/37 and unfavorable are 19/37.

Let S be possible numerical outcomes of an experiment and P(S) be the probability.

The expectation can be calculated as:

E(x) = sum of S × P(S)

ForS_1 = 8

P(S_1) = \frac{18}{37}

For S_2 = -8(negative sign represents the loss)

P(S_2) = \frac{19}{37}

Now, use the above formula.

E(x) = 8\times \frac{18}{37}-8\times \frac{19}{37}\\E(x) =-0.216

Hence, the expectation is -$0.216.

You might be interested in
This map shows the location of trees in a yard.
satela [25.4K]
The answer here is c. You get this by following the path of 3 to the right and up 8
8 0
3 years ago
Read 2 more answers
4 digit number that is not divisoble by 2,3,5 or 10
elena-14-01-66 [18.8K]

Answer:

isiiqywyysyu the first one the first time in a even if it well y eh I just saw your message garako thiya na na hey I k h I just got home from a ko xa ki xaina the morning to get well soon dd ko we

Step-by-step explanation:

  • eheuieiriieu to be ei ufuirijwjjeuuwuw to jnndhejfjit
7 0
3 years ago
Please help!!!! I am going to fail!!! I will mark you brainiest!
schepotkina [342]

Answer:

ok what do you need help with

7 0
2 years ago
Plzz help me with this question
bixtya [17]

Answer:

x = 5

Step-by-step explanation:

We need to find the value of x in this case.

For this, we need to consider that the triangles are similar. Now, we can find it as follows :

\dfrac{12}{3}=\dfrac{20}{x}\\\\x=\dfrac{20\times 3}{12}\\\\x=5

So, the value of x is equal to 5.

6 0
3 years ago
-3b + 8 = 38 + 3b pls help me solve for b plss
WARRIOR [948]

Answer:

b = -5

Step-by-step explanation:

Let's figure this equation, step by step.

-3b + 8 = 38 + 3b

<em>Step 1: Subtract 3b from both sides. This cancels out the addition by 3b.</em>

-3b + 8 - 3b = 38

<em>Step 2: Combine -3b and -3b to get -6b.</em>

-6b + 8 = 38

<em>Step 3: Subtract 8 from both sides. This cancels out the addition by 8.</em>

-6b = 38 - 8

<em>Step 4: Subtract 8 from 38 to get 30.</em>

-6b = 30

<em>Step 5: Divide both sides by -6. This undoes the multiplication by -6.</em>

b = 30/-6

<em>Step 6: Divide 30 by -6 to get -5.</em>

b = -5

Let's check our work by substituting -5 for b in the equation above.

-3(-5) + 8 = 38 + 3(-5)

15 + 8 = 38 + (-15)

23 = 23

Both sides are the same, so b = -5.

4 0
3 years ago
Other questions:
  • A children's birthday party at an indoor play center costs $50 to rent the space and $6.25 per child. Gina wants to spend no mor
    5·1 answer
  • ) use the midpoint rule with m= 4 and n = 2 to estimate the value of
    7·1 answer
  • 20 feet minus 10 inches= ? inches
    6·2 answers
  • iionel finished four rounds of a golf tournament . his combined total score after playing all four rounds was -10. his scores on
    7·1 answer
  • A building has a shadow that is 18 feet long.
    8·1 answer
  • 45-45-90...find the value of x?
    5·1 answer
  • Which expression is the best estimate of the product of 7/8and 8 1/10?
    7·1 answer
  • The ratio of the number of Miki's stickers to the number of Ken's
    12·1 answer
  • Which rule describes this transformation?
    13·1 answer
  • 8 x (7+1) = (_ x7) + (_ x1) fill in the blanks
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!