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garik1379 [7]
2 years ago
11

A sample consists of every 25th student from a group of 1000 students. the sampling technique used is:

Mathematics
1 answer:
agasfer [191]2 years ago
4 0

A sample consists of only the 25th student in a group of 1,000 students, called Systematic sampling.

<h3>What is meant by systematic sampling?</h3>
  • Systematic sampling is a probability sampling technique in which researchers periodically choose people from the population.
  • Comparatively speaking, systematic sampling is easier and clearer than a random sample. Additionally, it might make it easier to cover a large study region. Systematic sampling, however, puts certain arbitrary parameters into the data. This may result in some patterns being overrepresented or underrepresented.
  • Imagine that a statistician randomly chooses 100 individuals from a population of 10,000 as an example of systematic sampling. For example, selecting a fresh sample to draw from every 12 hours is one way to make the sampling intervals systematically.

A sample consists of only the 25th student in a group of 1,000 students, called Systematic sampling.

To learn more about systematic sampling, refer to:

brainly.com/question/14313925

#SPJ4

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If a tank holds 5000 gallons of water, which drains from the bottom of the tank in 40 minutes, then Torricelli's Law gives the v
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Answer:

V'(t) = -250(1 - \frac{1}{40}t)

If we know the time, we can plug in the value for "t" in the above derivative and find how much water drained for the given point of t.

Step-by-step explanation:

Given:

V = 5000(1 - \frac{1}{40}t )^2  , where 0≤t≤40.

Here we have to find the derivative with respect to "t"

We have to use the chain rule to find the derivative.

V'(t) = 2(5000)(1 - \frac{1}{40} t)d/dt (1 - \frac{1}{40}t )

V'(t) = 2(5000)(1 - \frac{1}{40} t)(-\frac{1}{40} )

When we simplify the above, we get

V'(t) = -250(1 - \frac{1}{40}t)

If we know the time, we can plug in the value for "t" and find how much water drained for the given point of t.

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