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mash [69]
2 years ago
15

A state has a lottery game where a person picks one of the 1000 three-digit numbers between 000 and 999. The lottery selects a t

hree-digit number at random. With a bet of $1, a person wins $700 if their number is selected and nothing ($0) otherwise. The expected value of the probability distribution for the amount of money you will win is 0.70. What is the correct interpretation of the expected value
Mathematics
1 answer:
lakkis [162]2 years ago
4 0

Answer:

A player can expect to win an average of 0.70 per lottery after playing the lottery sufficiently many times.

Step-by-step explanation:

The expected value for the amount of money to be won is 0.70 ;

The expected value of expected mean simply means the long run average because the expected mean refers to the average value of a random variable which is which is obtained over a large number of trials or experiment. In the case of lottery game, expected will thus be interpreted to mean the average winning (or loss) expected which a player earns or incurs after playing the lottery many times. It differs from the mean or average value earned after playing just a game or two as it refers to a long run average.

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Could someone help plz
Komok [63]

Answer:

The radius of the sphere is approximately 62.71 cm

Step-by-step explanation:

The question relates to the definition of a sphere

The given parameters are;

The distance between the sharp parallel blades through which the sphere is rolled = 77 centimeters

The radii of the circular faces left by cutting the sphere with the blade = 39 cm  and 60 cm

From the triangles formed by the cross-section of the sphere, we have;

AB ║ DE Given

∠A ≅ ∠E, ∠D ≅ ∠B Alternate angles

∠C ≅ ∠C by reflective  property

∴ ΔABC ~ ΔDCE by Angle-Angle similarity theorem

CF/CG = AB/DE = 78/120 = 13/20

CF = CG × 13/20

CF + CG = 77

∴ CG × 13/20 + CG = 77

33·CG/20 = 77

∴ CG = 140/3

CF = 13/20 × CG = 13/20 × 140/3 = 91/3

CF = 91/3

The diameter of the sphere AE = AC + EC

By Pythagoras's theorem

AC = √(FA² + CF²) = √(39² + (91/3)²) = 13·√(130)/3

EC = √(CG² + GD²) = √((140/3)² + 60²) = 20·√(130)/3

∴ AE = AC + EC = 13·√(130)/3 + 20·√(130)/3 = 11·√(130)

The diameter, 'D', of the sphere, AE = 11·√(130)

The radius of the sphere = D/2 = 11·√(130)/2 ≈ 62.71 cm

7 0
2 years ago
Does someone knows what equals 12.5 please
Blababa [14]
12 5/10 вecaυѕe ιғ yoυ тυrn тнe ғracтιon вacĸ тo a decιмal ιт woυld вe 5.0 dιvιded вy 10 woυld eqυal 12. 5
5 0
3 years ago
Read 2 more answers
Which of the sets of ordered pairs represents a function? A = {(1, -2), (3, -5), (5, 2), (7,5)} B = {(4, 2), (4, -2), (9,3), (9,
Rufina [12.5K]
Answer: only A

all of A’s inputs are different but B’s repeats 4 and 9 making it not a function, so its only A
6 0
3 years ago
Read 2 more answers
Pls help me and explain why it’s that answers.
maw [93]
The answer is the third one
3 0
3 years ago
How do I solve 3/4 =60% over 100
zepelin [54]
3/4 is 75% so the answer is 75% out of 100

Hope that helps!:)
5 0
3 years ago
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