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Musya8 [376]
3 years ago
13

Solve for x X+3 5/8= 7 1/4

Mathematics
1 answer:
lara31 [8.8K]3 years ago
6 0
X + 3 5/8 = 7 1/4
x + 29/8 = 29/4
x = 29/4 - 29/8
x = 58/8 - 29/8
x = 29/8
x = 3 5/8
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Answer:

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The probability mass function for the Binomial distribution is given as:

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Step-by-step explanation:

Previous concepts

A Bernoulli trial is "a random experiment with exactly two possible outcomes, "success" and "failure", in which the probability of success is the same every time the experiment is conducted". And this experiment is a particular case of the binomial experiment.

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The probability mass function for the Binomial distribution is given as:  

P(X)=(nCx)(p)^x (1-p)^{n-x}  

Where (nCx) means combinatory and it's given by this formula:  

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Solution to the problem

We assume that we have a fair coin that is p(Head)=p(Tails)=0.5

For this case we define the random variable X as "number of heads observed in 20 times". The distribution for X is given by:

X \sim Binom(n=20, p=0.5)

The probability mass function for the Binomial distribution is given as:

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Where (nCx) means combinatory and it's given by this formula:

nCx=\frac{n!}{(n-x)! x!}

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