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Andrei [34K]
3 years ago
14

Please help with this

Mathematics
1 answer:
julsineya [31]3 years ago
5 0
Here's the work and the answer. I hope this helps.

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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
Kipish [7]

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

3 0
3 years ago
Jennifer's Flower Shop sells flowers for $1.35 each. Mary's Flower Shop sells a dozen flowers for $15.96. Who has the best deal?
I am Lyosha [343]

Answer:

Mary has the better deal

Step-by-step explanation:

Jennifer's $1.35 * 12 = $16.20

Mary's 12 flowers = $15.96

7 0
3 years ago
Read 2 more answers
If your dog eats 7/8 lbs. of food in 4 meals, how many meals will it take for your dog to eat 1 lb. of food
Shtirlitz [24]
5 meals for the dog to eat 1 lb.
7/8 =.875.
.875/4=.218.
.218+.875=1.09
6 0
3 years ago
What is the solution to the system of linear equations graphed here?
Serjik [45]

Answer:

the solution is (-1, 2).

5 0
3 years ago
A pet store donated a percent of every sale to charity. The total sales were ​$6600 so the store donated ​$330. What percent of
xz_007 [3.2K]

Answer:

its 5%

Step-by-step explanation:

6600-5%= 6270

6600-6270= 330

3 0
3 years ago
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