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sattari [20]
3 years ago
15

Expected value is

Mathematics
1 answer:
solong [7]3 years ago
6 0

Answer:

(C). ​(Probability of state A*Value in state A)+(Probability of state B*Value in state B)

Step-by-step explanation:

The expected value of a probability distribution, E(X) is defined as:

E(x)=\sum_{i=1} ^{k} x_{i} \cdot P(x_{i})\\$Where x=An Outcome\\P(x)=Probability of that Outcome

Given Outcome A and B, the Expected Value  therefore is:

Expected Value = ​(Probability of state A*Value in state A)+(Probability of state B*Value in state B)

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which one of the following uses estimation to check 267-154=113? a. 300-200=100. b. 113+154=267. c. 300-150=150. d. 270-150=120
Vlada [557]
A. 300-200=100
You round 267 to 300, 154 to 200, and 113 to 100.
8 0
3 years ago
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Given three positive integers a, b and c such that a² + b² - c² = 1. Let the number of triangles formed with sides a, b and c wi
Akimi4 [234]

Answer:

Step-by-step explanation:

Count pairs (a, b) whose sum of squares is N (a^2 + b^2 = N)

Given a number N, the task is to count all ‘a’ and ‘b’ that satisfy the condition a^2 + b^2 = N.

Note:- (a, b) and (b, a) are to be considered as two different pairs and (a, a) is also valid and to be considered only one time.

Examples:

Input: N = 10

Output: 2

1^2 + 3^2 = 9

3^2 + 1^2 = 9

Input: N = 8

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8 0
3 years ago
PLEASE HELP ME ASAP!!!!!!<br><br><br><br> ty :)
Drupady [299]

Answer:

B should be the answer but it could but C

3 0
2 years ago
Solve for x and y in the system of equation<br>3x²+4y=17 <br>2x²+5y=2<br>I'll mark brainliest​
Novay_Z [31]

Answer:

x=\pm \sqrt{11} \\y=-4.

Step-by-step explanation:

\left \{ {{3x^2+4y=17} \atop {2x^2+5y=2}} \right. \\\\Then\\\\\left \{ {{2 \times (3x^2+4y)=2 \times 17} \atop {3\times(2x^2+5y)=3\times2}} \right. \\\\\left \{ {{6x^2+8y=34 \quad (1)} \atop {6x^2+15y=6\quad (2)}} \right.\\\\(1)-(2) \Rightarrow -7y=28 \Rightarrow y =-4.\\Since \: \:  2x^2+5y=2 \Rightarrow 2x^2=2-5y\\\Rightarrow 2x^2=2+20=22\\\Rightarrow x^2=22:2=11\\\Rightarrow x=\pm \sqrt{11}.

7 0
3 years ago
Which of the following terms is defined as a nonrepeating, nonterminating decimal? o A) Repeating number B) Irrational number C)
grandymaker [24]

Answer:

B.

Step-by-step explanation:

That is an irrational number.

Examples are √2 and π.

4 0
3 years ago
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