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2 years ago

Janna is making a prediction of the frequency of a key that is 12 keys from middle

3 answers:

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Among the choices the one that best describes her prediction is "extrapolation, because a key that is 12 keys from middle C is outside the data set".

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Furkat [3]2 years ago

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The correct answer is:

Extrapolation, because a key that is 12 keys from middle c is outside the data set.

Explanation:

Interpolation is inserting an intermediate value into an existing series using estimation or calculations from nearby values. A key 12 keys from middle C is not in the data set involved, so this is not interpolation.

Extrapolation involves using a trend or pattern to estimate unknown values past the values we have. Since this key would be past our data set that we have, this would be extrapolation.

Angeline2 years ago

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D for those on Edgenuity

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b. Find a 99% confidence interval for mean age of ICU patients using the facts that, in the sample, the mean is 57.55 years and

rjkz [21]

Answer:

99% of confidence intervals for mean age of ICU patients

(53.8920 , 61.2079)

Step-by-step explanation:

Explanation:-

Given sample mean $x^{-} = 57.55$

Given standard error is determined by

S.E = $\frac{S.D}{\sqrt{n} }$

Given data standard error = 1.42

99% of confidence intervals for mean is determined by

$(x^{-} - Z_{0.01} \frac{S.D}{\sqrt{n} } , x^{-} + Z_{0.01} \frac{S.D}{\sqrt{n} } )$

$Z_{\frac{\alpha }{2} } = Z_{\frac{0.01}{2} } = Z_{0.05} = 2.576$

$(x^{-} - 2.576 S.E , x^{-} + 2.576 S.E)$

$(57.55 - 2.576X 1.42 , 57.55+ 2.576 X1.42)$

(53.8920 , 61.2079)

Conclusion:-

99% of confidence intervals for mean is determined by

(53.8920 , 61.2079)

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3 years ago

A parrot is selling for 40% off the original price. the original price was $90.what is these price of the parrot

BigorU [14]

40 percent off of $90 is $36.

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3 years ago

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nika2105 [10]

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2 years ago

Read 2 more answers

Need help with math

Len [333]

2) no solution

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2 years ago

What is 60 percent written as decimal

Sladkaya [172]

To convert ANY percent to a decimal we need to divide the percent by 100. Lets do it:-

60%
60 ÷ 100 = 0.60
60% written as a decimal is 0.60.

CHECK OUR WORK:-

0.60 × 100 = 60
We are RIGHT!!!

So, 60% written as a decimal is 0.60 (0.6).

Hope I helped ya!! xD

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3 years ago