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vesna_86 [32]
4 years ago
13

What value of the variable makes the statement true?

Mathematics
2 answers:
maks197457 [2]4 years ago
5 0
A. -6.8 because
m + 4 = -2.8
m = -2.8 - 4
m = -6.8

BigorU [14]4 years ago
3 0

                                               m + 4 = -2.8

Subtract  4  from each side:    m      = -6.8
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Just add the x's its simple, answer is 10
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The expected value of the number of points for each turn is 0.25

<h3>What is expected value?</h3>

Expected value describes the long term average level of a random variable based on its probabilty distribution.

Now, Probability that 2 heads come up is

P(2 is H) = 1/4

Probability that 1 heads come up is

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Probability that no head will come up

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Hence, the expected value for winning of 2points, 1point and  lose of3 points is given as-

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= 0.5 + 0.5 - 0.75

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You would do this because we are trying to find the number of marbles that are red out of the 24 marbles.

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You would follow this rule for each fraction of marbles in order to find the true number of marbles out of 24.

4 0
3 years ago
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