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IRISSAK [1]
4 years ago
11

Suppose it costs ​$49 to roll a pair of dice. you get paid 7 dollars times the sum of the numbers that appear on the dice. what

is the expected payoff of the​ game? is it a fair​ game?
Mathematics
1 answer:
poizon [28]4 years ago
3 0
Yes because you automatically get 14 dollars and you could wide 84 dollars
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Which three-dimensional figure will this net make?
V125BC [204]
The shape for this net is the last one
3 0
4 years ago
You measure 25 turtles' weights, and find they have a mean weight of 31 ounces. Assume the population standard deviation is 12.8
Firlakuza [10]

Answer:

Margin of error = 4.21 ounces  

Step-by-step explanation:

According to the Question,

  • Given That, You measure 25 turtles' weights, and find they have a mean weight of 31 ounces. Assume the population standard deviation is 12.8 ounces

Therefore, Sample mean = 31 ounces  ,  Sample size(n) = 25 , Alpha(α) = 0.10 & Population standard deviation(σ) = 12.8 ounces

  • Thus, Margin of error  = Z_{critical} × σ / √n  (Z_{critical} at α=.010 is 1.645)

Putting The Values, We get

1.645 × (12.8 / √25 ) ⇒ 4.2112 ≈ 4.21

Thus, the maximum margin of error associated with a 90% confidence interval for the true population mean turtle weight is 4.21 ounces

8 0
3 years ago
What’s answer 1 and 2?
emmasim [6.3K]
hey sorry I need a free point !
4 0
3 years ago
Help me pleaseeeeeeeeee
crimeas [40]

Answer:

x=10 and x=-9

Step-by-step explanation:

Factor:

(x-10)(x+9)=0

x-10=0

x=10

and

x+9=0

x=-9

3 0
2 years ago
Solve for d: 0.5(2d-6)=0.2(4x-10)
Law Incorporation [45]

Answer:d=0.8x+1

Step-by-step explanation:

To solve 0.5(2d-6)=0.2(4x-10)

Open the brackets

We get

d-3=0.8x-2

To make d the subject of formular

d=0.8x-2+3

d=0.8x+1

7 0
3 years ago
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