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Bad White [126]
3 years ago
7

A researcher selects a sample from a district such that 25% of the children are between ages 5 and 6, 25% are between ages 7 and

8, 25% are between 9 and 10, and 25% are between ages 11 and 12. The researcher is employing a ________ sampling.
SAT
1 answer:
Llana [10]3 years ago
6 0

Answer:

Quota.

Explanation:

In Statistics, sampling can be defined as a process used to collect or select data (objects, observations, or individuals) from a larger statistical population using specific procedures.

There are various types of sampling used by researchers and these are;

1. Random sampling.

2. Systematic sampling.

3. Stratified sampling.

4. Cluster sampling.

5. Opportunity or convenience sampling.

6. Quota sampling.

Quota sampling can be defined as a non-probability sampling technique wherein a sample comprising of data from a population or homogeneous group are created.

In this scenario, a researcher selects a sample from a district such that 25% of the children are between ages 5 and 6, 25% are between ages 7 and 8, 25% are between 9 and 10, and 25% are between ages 11 and 12. Thus, the researcher is employing a quota sampling.

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When scientists discuss objects that might hit Earth, what term do they use to describe them as a group?
Ksivusya [100]

it is near earth objects NEO

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3 years ago
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One benefit of digital technology, such as desktop publishing, is that it restricted design work to trained designers thereby el
zheka24 [161]

This is false. This is not a benefit of digital technology.

<h3>What is digital technology?</h3>

This is the term that is used to refer to all of the hard wares and the soft ware components of the computer as well as the networks and internet. It also involves communication technology and information, that is used on the computer.

The benefits of digital technology has to do with the fact that devices are created to be more compact, efficient and are able to run in a much faster way. Modern digital technology has created a system where devices are portable as well as handy.

Hence we can say that It is false that a benefit of digital technology, such as desktop publishing, is the restriction of design work to trained designers thereby elevating the standards of graphic design.

Read more on digital technology here:

brainly.com/question/617704

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8 0
2 years ago
The vertices of square cdef are c(1, 1), d(3, 1), e(3,−1) and f(1,−1). Which of the following shows that its diagonals are congr
maks197457 [2]

The equation -1 = -\frac {1}{1} shows that the diagonals are congruent perpendicular bisectors.

The vertices of the square are given as:

  • c = (1,1)
  • d = (3,1)
  • e =(3,-1)
  • f = (1,-1)

<h3>How to determine the congruent perpendicular bisectors.</h3>

Start by calculating the slope of diagonal ce using:

m = \frac{y_2 -y_1}{x_2  -x_1}

So, we have:

m = \frac{-1-1}{3  -1}

m = \frac{-2}{2}

m_1 = -1

Next, calculate the slope of diagonal df using:

m = \frac{y_2 -y_1}{x_2  -x_1}

So, we have:

m = \frac{-1-1}{1-3}

m = \frac{-2}{-2}

m_2 = 1

The slopes of both diagonals are:

m_1 = -1

m_2 = 1

By comparing both slopes, we have:

m_1 = -\frac {1}{m_2}

i.e.

-1 = -\frac {1}{1}

Hence, -1 = -\frac {1}{1} shows that the diagonals are congruent perpendicular bisectors.

Read more about perpendicular bisectors at:

brainly.com/question/11006922

8 0
2 years ago
What is the purpose of the author's use of diction in describing the sight of a red grouper? A) The author uses figurative langu
madreJ [45]

Answer:

Answer might be A

Explanation:

I don't know the full passage but from what you wrote about the "Red Grouper, it might be a figurative language.

3 0
3 years ago
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For how many three digit numbers (100 to 999) is the sum of the digits even?.
attashe74 [19]

The digital sum of a 3-digit number is even if

• all 3 of its digits are even, or

• 2 of its digits are odd and 1 is even

Count the number of 3-digit numbers, all of whose digits are even:

• the first digit cannot be 0, and otherwise has 4 options (2, 4, 6, or 8)

• the second and third digits each have 5 options (2, 4, 6, 8, or 0)

So there are 4 × 5² = 100 such numbers.

Count the number of 3-digit numbers with 2 odd digits and 1 even digit:

• if the first digit is even, then there are 4 options (2, 4, 6, or 8), and the other two digits each have 5 options (1, 3, 5, 7, or 9)

• if the first digit is odd, then there are 5 options (1, 3, 5, 7, or 9); if the second digit is also odd, it has the same 5 options; then the third digit is even and has 5 options (2, 4, 6, 8, or 0)

Swapping the second and third digits in the last case gets the same amount of numbers; we're effectively multiplying by the number of permutations of 2 objects taken 2 at a time, 2!.

So there are 4 × 5² + 2! × 5³ = 350.

Then there is a total of 450 3-digit numbers whose digital sums are even.

7 0
2 years ago
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