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GuDViN [60]
1 year ago
5

Suppose that X is a random variable that has a binomial uncertainty distribution with parameters n = 10 and π = 0.4. Calculate t

he numerical value of the probability that X = 6. What are the numerical values of the mean and standard deviation of the uncertainty distribution?

Mathematics
1 answer:
swat321 year ago
8 0

The numerical values of the mean and standard deviation are 4 and 1.55, respectively

<h3>The numerical value of the probability that x = 6. </h3>

The given parameters are:

n = 10

π = 0.4

The probability is then calculated as:

P(x) = ^nC_x * \pi^x *(1-\pi)^{n-x}

So, we have:

P(6) = ^{10}C_6 * 0.4^6 *(1-0.4)^4

Apply the combination formula

P(6) = \frac{10!}{6!4!} * 0.4^6 *0.6^4

So, we have:

P(6) = 210 * 0.4^6 *0.6^4

Evaluate

P(6) = 0.1115

Hence, the numerical value of the probability that x = 6 is 0.1115

<h3>The numerical values of the mean and standard deviation </h3>

The mean value is:

\bar x = n\pi

This gives

\bar x = 10 * 0.4

\bar x = 4

The standard deviation value is:

\sigma = \sqrt{\bar x(1-\pi)

This gives

\sigma = \sqrt{4(1-0.4)

\sigma = 1.55

Hence, the numerical values of the mean and standard deviation are 4 and 1.55, respectively

Read more about mean and standard deviation at:

brainly.com/question/16030790

#SPJ1

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PLEASE HELP! PLEASE!!!!!!!
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Using the equation of the proportional relationship:

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<h3>What is a Equation of a Proportional Relationship?</h3>

A equation of a proportional relationship models the relationship between two variables, x and y, that has a constant of k. It is expressed as y = kx.

Given the following:

Equation: d = 60t

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Distance (d) it would travel in 2.5 hours (t):

d = 60(2.5)

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Learn more about the equation of a proportional relationship on:

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Step-by-step explanation:

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