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Korolek [52]
3 years ago
5

Please help me explanation is not needed but would be very useful since I don’t understand this concept, thank you.

Mathematics
2 answers:
baherus [9]3 years ago
7 0

Answer:

56.25 degrees

Step-by-step explanation:

This is dealing with an adjacent and hypotenuse variable, so you use cosine. Since your want to find the angle, u have to use cos^-1 times 5 over 9. Because when you use cosine its adjacent over hypotenuse. cos^-1(5/9)

Akimi4 [234]3 years ago
3 0

Answer:

56.3°

Step-by-step explanation:

You first have to figure out what you are going to use to find Angle B ( tanФ, cosФ or sinФ).

In this case you would use CosФ because you are given "adjescent over hypotenuse." Hence, 5/9.

Once you plug in CosФ=5/9 into your calculator you will get the angle of B. Which is: ∠B= 56.2510114°. Lastly, you would round this answer to the nearest hundredth.

Hope this helped! If you have any questions feel free to comment them.

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Step-by-step explanation:

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For a binomial process, the probability of success is 40 percent and the number of trials is 5. Find the standard deviation.
Yakvenalex [24]

Answer:

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Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

Solution to the problem

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X \sim Binom(n=5, p=0.4)

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

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And the variance is given by:

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And the deviation is just the square root of the variance so we got:

Sd(X) =\sqrt{1.2}=1.095

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