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Misha Larkins [42]
3 years ago
12

What is the z score of a value that is 2.08 standard deviations greater than the mean

Mathematics
1 answer:
Vesna [10]3 years ago
4 0
  The z- score is the number of standard deviations from the mean value of the reference population.
  For example: the z-score of 2 is 2 standard deviations above the mean.
  The z -score of a value that is 2.08 standard deviations greater than the mean is 2.08.
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The average monthly rent for a? 1000-sq-ft apartment in a major metropolitan area from 1998 through 2005 can be approximated by
Lunna [17]

Answer:

  t = 1.107

Step-by-step explanation:

Finding the solution using derivatives involves finding the lower zero of the quadratic that is the second derivative of the given function. That second derivative will be ...

  f''(t) = 12(1.6714)t^2 -6(22.45)t +2(62.27)

  = 20.0568t^2 -134.7t +124.54

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Then f''(t) = 0 when ...

  t ≈ 3.35796 -√(101.619/20.0568) ≈ 1.10706

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The solution is perhaps more easily found using a graphing calculator to find the peak of the first derivative. (See attached.) It tells us ...

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8 0
3 years ago
What is the cheapest way to buy 48 cans of cola
Inga [223]

Answer:

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Step-by-step explanation:

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4 0
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aivan3 [116]
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If the angle of elevation of the sun is 61.7° when a building casts a shadow of 56.5 feet, what is the height of the building ro
maksim [4K]

SOLUTION

Let us use a simple diagram to interprete the question

In the diagram above, the dark stuff below represents the shadow and the rectangular bar represents the building. I have labelled the height of the building as h.

So we will use the right-angled triangle formed to find h

As we can see h represents the opposite side and 56.5 feet represents the adjacent side of the right-angle triangle. So we will use TOA

\text{TOA tan }\theta=\frac{opposite}{\text{adjacent}}

So we have

\begin{gathered} \text{ tan }\theta=\frac{opposite}{\text{adjacent}} \\ \text{ tan }61.7\degree=\frac{h}{56.5} \\ 1.8572015=\frac{h}{56.5} \\ \text{cross multiplying, we have } \\ h=1.8572015\times56.5 \\ h=104.931887 \end{gathered}

Hence the answer is 104.9 feet to the nearest tenth

4 0
1 year ago
Which of the following could be the lengths of the sides of a 45°-45°-90° triangle?
Sunny_sXe [5.5K]
Answer would be <span>6.
i've done this one before.</span>
7 0
3 years ago
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