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Vedmedyk [2.9K]
2 years ago
15

Find the indicated values in each shape

Mathematics
1 answer:
DENIUS [597]2 years ago
7 0

Answer:

gap plzzzzzz

Step-by-step explanation:

likeeeeeeeeeeeeeeeeeeee

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An article written for a magazine claims that 78% of the magazine's subscribers report eating healthily the previous day. Suppos
Schach [20]

Answer:

89.44% probability that less than 80% of the sample would report eating healthily the previous day

Step-by-step explanation:

We use the binomial approximation to the normal to solve this question.

Binomial probability distribution

Probability of exactly x sucesses on n repeated trials, with p probability.

Can be approximated to a normal distribution, using the expected value and the standard deviation.

The expected value of the binomial distribution is:

E(X) = np

The standard deviation of the binomial distribution is:

\sqrt{V(X)} = \sqrt{np(1-p)}

Normal probability distribution

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

When we are approximating a binomial distribution to a normal one, we have that \mu = E(X), \sigma = \sqrt{V(X)}.

In this problem, we have that:

p = 0.78, n = 675

So

\mu = E(X) = np = 675*0.78 = 526.5

\sigma = \sqrt{V(X)} = \sqrt{np(1-p)} = \sqrt{675*0.78*0.22} = 10.76

What is the approximate probability that less than 80% of the sample would report eating healthily the previous day?

This is the pvalue of Z when X = 0.8*675 = 540. So

Z = \frac{X - \mu}{\sigma}

Z = \frac{540 - 526.5}{10.76}

Z = 1.25

Z = 1.25 has a pvalue of 0.8944

89.44% probability that less than 80% of the sample would report eating healthily the previous day

8 0
3 years ago
Translate the following points 5 units up. <br> (-5, -2) (-2, 1) (-4, -7)
makkiz [27]
(-5, 3) (-2, 6) (-4, -2)
those will be your answers
8 0
3 years ago
Plsss answerrrr I give brainliest thank uuu
arsen [322]

Answer:

<em>The answer is</em> <u><em>48m</em></u><em>, I hope this answer is correct!</em>

Step-by-step explanation:

For each cube there are 6 sides so,  1  cube has the value of 6m so, since there are 8 cubes, the volume is 48m.

<em>Please give me </em><u><em>Brainliest</em></u><em>!</em>

<em>Have a good day,</em>

<em>-johannelbekian (You can call me </em><u><em>"Despacito Spider"</em></u> <em>Btw)</em>

6 0
3 years ago
at the end of a Pizza party 1/3 of a cheese pizza and 1/6 of a pepperoni pizza or left brand ate 1/2 of all the leftover pizza w
Readme [11.4K]

Answer:

Half?

I’m not sure myself

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3 years ago
Find any domain restrictions on the given rational equation:
koban [17]

Answer: 10, -10

Step-by-step explanation: a pex

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3 years ago
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