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Soloha48 [4]
3 years ago
10

5 to the power of 2 subtracted by 2 and added by 7

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

Answer:

30

Step-by-step explanation:

5^2-2+7

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4x-c=k

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The probability distribution of random variable, X, is defined as follows:
stealth61 [152]

Answer and Step-by-step explanation:

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In the table shown, the probabilities are from 0 to 0.3 - between 0 and 1;

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Therefore, this model is a valid probability distribution model.

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C) Expected value is calculated by

E(X) = \Sigma xP(x)

E(X) = 0.0 + 1*0.3 + 2*0.1 + 3*0.3 + 4*0.3

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D) P(X=3) = P(3), which means probability of 3:

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G) P(X=5) = P(5)

There is no probability of P(5) because the model doesn't "cover" that number.

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P(X=0) = 0

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