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
vichka [17]
3 years ago
10

You and a friend play a game where you each toss a balanced coin. If the upper faces on the coins are both tails, you win $2; if

the faces are both heads, you win $6; if the coins do not match (one shows a head, the other a tail), you lose $3 (win (−$3)). Calculate the mean and variance of Y, your winnings on a single play of the game. Note that E(Y)> 0. how mucuh should you oay ti okay this game if your net winnings, the difference between the payoff and cost of playing, are to have mean 0?
Mathematics
1 answer:
Kipish [7]3 years ago
3 0

Answer:

E(Y) = $0.5

Var(Y)  = 14.25

you should pay the same amount  $0.5

Step-by-step explanation:

E(Y) =  = Σ(YP)

P = probability of each outcomes.

Var(Y) = ΣY^{2}p − (μ x μ)

E(Y) = (2 x 0.25) +(6 x 0.25) + (0.5 x (-3)) = $0.5

Var(Y) = (2^{2}\\x 0.25) + (6^{2} x 0.25) +(-3^{2} x 0.5) - (0.5^{2})

       = 14.5 - 0.25

Var(Y)  = 14.25

for the difference between the payoff and cost of playing to have mean 0, you should pay the same amount  $0.5

You might be interested in
Determine the measure of ∠DBC. answers: 1) 130° 2) 115° 3) 230° 4) 65°
Norma-Jean [14]

Answer:

65 degrees

Step-by-step explanation:

65 degrees

it is 65 because of the vector relationship: 30 + 100 = 130. 130/2=65 degrees

5 0
3 years ago
Read 2 more answers
The is 12,000ft what the diameter
crimeas [40]
6,00 ft is the diameter
4 0
3 years ago
The range for a list of numbers is 7. the smallest value is 4. what is the largest value in the list
Katena32 [7]

Answer:

7

Step-by-step explanation:

8 0
3 years ago
This is for my question I asked earlier because the picture was blurry
slega [8]
Q1-(-42)
Q2-(14)
Q3-(-3)
Q4-(7)
Q5-(11)
Q6-(3)
Q7-(-54)
Q8-(-13/2)
3 0
3 years ago
Can you please help?
Alborosie
Can’t help DDDD: bcoz link is a scam
7 0
3 years ago
Other questions:
  • You can walk 2 miles in 25 minutes. How long would it take you to walk 6 miles? What is the proportion you would solve to find t
    13·1 answer
  • Please solve and explain steps for this problem.
    15·1 answer
  • What is the image of
    14·1 answer
  • A nickel has a mass of 5 grams. There are 40 nickels in a row of nickels what is the mass of a roll of nickels
    15·2 answers
  • Find the height of this cone using the Pythagorean Theorem. 8 cm h = [?] cm 8 cm Enter​
    5·1 answer
  • A line passes through the points (4, -1) and (2,3). What is the slope of the line?
    5·1 answer
  • A rotating lawn sprinkler sprays water in a circular area of grass. the Diameter of the grass shown is 10 feet. What is the area
    14·2 answers
  • Let vector a = 3i + j - k.<br><br> Find the vector b in the direction of vector a such that |b| = 5
    15·1 answer
  • EASY 100 POINTS WILL MARK BRAINIEST!!!!!
    6·2 answers
  • Pleeaaaaase help!!!!!!!!!!
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!