Mathematics: Will medal and fan and ! the probability distribution of x, a discrete random variable, is given in the table. what is the expected value of x? x probability 0 0.2 1 0.1 2 0.4 3 0.2 4 0.1

Will medal and fan and ! the probability distribution

Ответ:

abeyhalley

13.01.2022

Expected value of a discrete random variable is:
E(X) = ∑ XiPi

E(X) = 0(0.2) + 1(0.1) + 2(0.4) + 3(0.2) + 4(0.1)
E(X) = 0 + 0.1 + 0.8 + 0.6 + 0.4
E(X) = 1.9

In short, Your Answer would be 1.9

Hope this helps!

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Ответ:

alyssabalinnt

13.01.2022

Mathematics

Hence, the expected value of x is 1.9.

Step-by-step explanation:

Since we have given that

xProbability

00.2

10.1

20.4

30.2

40.1

So, The expected value of x is given by

$E(x)=\sum xp(x)\\\\E(x)=0\times 0.2+1\times 0.1+2\times 0.4+3\times 0.2+4\times 0.1\\\\E(x)=0+0.1+0.8+0.6+0.4\\\\E(x)=1.9$

Hence, the expected value of x is 1.9.

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Ответ:

mewings

02.01.2021

Mathematics

Step-by-step explanation:

-35 x - 625 = 21875 so positive

263 x 0 = 0 so zero

-21 x 451 = - 9471 so negative

-350 x 89 = - 31150 so negative

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Will medal and fan and ! the probability distribution of x, a discrete random variable, is given in the table. what is the expected value of x?

x probability
0 0.2
1 0.1
2 0.4
3 0.2
4 0.1

Ответ:

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