How often do college students engage in particular activities using their cellphones? A researcher

Mathematics

1 answer:

soldi70 [24.7K]3 years ago

5 0

Answer:

A. Both numbers are statistics.

Explanation:

The number 94.6 is an average measure from a sample. It is the mean of a sample.

The number 65.3 is the standar deviation of a sample.

Then, thus numbers are used to estimate the values of the population.

The true mean and the standard deviation of a population are constant numbers; many times unknown (specially when the population is too big). As ,those values are parameters of the population, regardless they are known or not.

When, they are not known, the statistician must estimate them. The statistician does it using samples (one or more). Such estimated values are not parameter but statistics.

Statistics are values for a sample and may (in general will) vary from sample to sample, while the parameters, which belong to the population are fixed values.

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frozen [14]

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3 years ago

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The length of a rectangle is 55 meters less than 44 times the width. if the perimeter is 150150 meters, find the length and the

MrRa [10]

They did not state exactly what the width or length is. So in this case, let's name the number of width to be x. And thus we can derive to the conclusion of,

Width : x
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2(x)+2(x-44)=150150
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3 years ago

The gross federal debt y (in trillions of dollars) for a certain country in year x is approximated by the following equation,

miskamm [114]

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Step-by-step explanation:

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