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scoundrel [369]
3 years ago
13

Suppose you want to know whether the eighth-grade music students at a school spend more time practicing their instruments or pla

ying computer games. Explain how you would get a representative sample from the population.
Mathematics
2 answers:
valentinak56 [21]3 years ago
6 0

Answer:

Step-by-step eAcquiring a list of all the names of eighth-grade music students (the population).

Selecting some of the eighth-grade music students at random.

Selecting enough students to get a good sample for the population, but not every student.

Making sure the selection of students is completely random to get valid results and avoid a biased sample.

lorasvet [3.4K]3 years ago
3 0
<span> Get a list of all the music students in the eighth grade. Randomly select enough students to get a sample from the population. Ensure that the selection is completely random so the sample is not biased.</span>
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4 0
3 years ago
A page should have perimeter of 42 inches. The printing area within the page
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Overall  dimensions of the page in order to maximize the printing area is  page should be 11 inches wide and 10 inches long .

<u>Step-by-step explanation:</u>

We have , A page should have perimeter of 42 inches. The printing area within the page  would be determined by top and bottom margins of 1 inch from each side, and the  left and right margins of 1.5 inches from each side. let's assume  width of the page be x inches  and its length be y inches So,

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width of printed area = x-3  & length of printed area = y-2:

area = length(width)

area = (x-3)(y-2)\\area = (x-3)(21-x-2)\\area = (x-3)(19-x)\\area = -x^{2} + 22x -57

Let's find \frac{d(area)}{dx}:

\frac{d(area)}{dx} = \frac{d(-x^{2}+22x-57)}{dx} = -2x +22 , for area to be maximum \frac{d(area)}{dx}= 0

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y = 21-x\\y = 21-11\\y = 10 inches

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3 years ago
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250 divided by 2 is 125 because 125+125=250

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2 years ago
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