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
tia_tia [17]
3 years ago
8

Plz help answer a - d 1. Miguel is playing a game in which a box contains four chips with numbers written on them two of the chi

ps have the number one one chip has the number three and the other chip has the number 5 Miguel must choose to chips if both chips have the same number he wants to dollars if the two chipsy chooses have different numbers he loses $1 (-$1) Look at pictures for the questions

Mathematics
1 answer:
Scilla [17]3 years ago
3 0

Answer:

Step-by-step explanation:

Hello!

Miguel has four chips, two have the number "1", one has the number "3" and the other has the number "5"

If the experiment is "choosing two chips and looking at their numbers" there are the following possible outcomes:

S= {(1,1)(1,3)(1,5)(3,1)(5,1)(3,5)(5,3)}

The sample space for the experiment has 7 possible combinations.

a)

Be X: the amount of money Miguel will receive or owe.

If two chips with the same number are chosen he will receive $2

If the chips have different number he will owe $1

Looking at the possible outcomes listed above, out of the 7, in only one he will select the same number (1,1)

So the probability of him receiving $2 will be 1/7

Now out of the 7 possible outcomes, 6 will make Miguel owe $1, so you can calculate its probability as: 6/7

  xi  | $2 | -$1

P(xi) | 1/7 | 6/7

b)

To calculate the expected value or mean you have to use the following formula:

\frac{}{X}= ∑[xi*P(xi)]= (2*1/7)(-1*6/7)= -4/7= $-0.57

c)

The expected value is $-0.57, meaning that Miguel can expect to owe $0.57 at the end of the game.

d)

To make the game fair you have to increase the probability of obtaining two chips with the same number. Any probability close to 50% will make the game easier. For example if you change the experiment so that for earning $2 the probability is 4/7 and for owing $1 the probability is 3/7, the expected earnings will be:

(2*4/7)+(-1*3/7)= $0.71

I hope this helps!

You might be interested in
What is the slope of the line shown below?
Ivan

We can use the points (-4, 3) and (3, 1) to solve.

Slope formula: y2-y1/x2-x1

1-3/3-(-4)

-2/7

Therefore, the answer is C

Best of Luck!

6 0
3 years ago
Read 2 more answers
9 packages of grape cost $24 how many packages of grapes can you buy for $8
Leto [7]
Ok. First you have to find the unit rate. Since you can buy 9 packages of grapes for $24, then you can get 1 grape package for $2.6667. If you have $8, you can buy 3 packages of grapes.
8 0
3 years ago
Read 2 more answers
Which statement is true about the prime polynomial 2x2 + 3x + 3?
dedylja [7]

Answer:

It cannot be modeled with a rectangle.

Step-by-step explanation:

The given expression 2x^2 + 3x +3 cannot be factored.

That means that it cannot be modeled with a rectangle.

So your answer is, It cannot be modeled with a rectangle.

6 0
3 years ago
Read 2 more answers
How can using equivalent ratios help you operate a business?
never [62]
Hi there

Using equivalent ratios to help operate a business is useful for financial ratios.
There are common size ratios, liquidity ratios, efficiency ratios, and solvency ratios. 

Ratios are used to let us compare one item to another. (For example, comparing 1 teacher to 25 students, or 1:25)

Did you have any answers to chose from? I just figured I'd provide you with what I knew about this subject to help in case there were no options to chose from.
4 0
3 years ago
Brianna had 20$ but spent d dollars on ice cream. Write an expression to represent how much Brianna has after buying ice cream​
Georgia [21]

Answer:

20-d=y

Step-by-step explanation:

3 0
2 years ago
Other questions:
  • A researcher conducts a hypothesis test to evaluate the effect of a treatment that is expected to increase scores. the hypothesi
    7·1 answer
  • What must be added to 294.315 to get 301.5?​
    11·1 answer
  • Using the Law of Syllogism, what conclusion can you draw from the following two statements? If you miss the bus, then you will b
    8·1 answer
  • Help please i need this asap !!
    6·1 answer
  • Find the surface area of this prism. Leave your answer as a mixed number in simplest form.
    12·1 answer
  • Is this relation a function justify your anwser
    10·1 answer
  • after a few mathletes join the team, the team is able to solve 40% more problems per session. Of the team can solve 42 problems
    7·2 answers
  • Your math teacher tells you that the next test is worth 100 points and contains 38 problems. Multiple-choice questions are worth
    12·1 answer
  • A body of mass 40 g moves with a velocity of 4ms -1. Calculate its kinetic energy ​
    13·1 answer
  • Use the distance formula to calculate the distance between the following two points:
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!