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Digiron [165]
3 years ago
8

Please help me with precal

Mathematics
1 answer:
Doss [256]3 years ago
6 0

Consider the function f(x)=\sqrt{x}. This function has:

  • the domain x\in [0,\infty);
  • the range y\in [0,\infty).

If the domain of unknown function is [a,\infty), then x\ge a or x-a\ge 0. This means that you have \sqrt{x-a} as a part of needed function.

If the range of unknown function is [b,\infty), then y\ge b. This means that you have to translate function b units up and then the expression of the function is

y=\sqrt{x-a}+b.

Answer: correct choice is B.

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Using the binomial distribution, it is found that the mean and the standard deviation of variable x are given as follows:

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<h3>What is the binomial probability distribution?</h3>

It is the probability of exactly <u>x successes on n repeated trials, with p probability</u> of a success on each trial.

The expected value of the binomial distribution is:

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The standard deviation of the binomial distribution is:

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In this problem, we have that the parameters are given as follows:

n = 4, p = 0.75.

Hence the mean and the standard deviation are given as follows:

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More can be learned about the binomial distribution at brainly.com/question/24863377

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