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swat32
2 years ago
7

Determine whether the selection process for each sample was random or nonrandom.

Mathematics
1 answer:
stepladder [879]2 years ago
8 0

The selection process for each sample was Random, Hence, Random sampling

This is further explained below.

<h3>Determine whether the selection process for each sample was random or nonrandom.?</h3>

Generally,  During physical education classes, students are randomly assigned to teams by selecting names from a hat or bag containing their names on individual pieces of paper.

There is a designated area at a supermarket for shoppers to leave comments. Each week, a satisfied customer will be randomly selected from the feedback forms submitted to win a gift certificate.

Selection bias

For a research project, physicians must first compile a list of patients. The first ten people on the list will be placed in the placebo group.

A clothes retailer conducts surveys of clients who use its store credit card to better understand its clientele.

We collect five soil samples from the biggest farm in a given area to determine the quality of the soil there.

The distinction between random and non-random sampling is explained.

In random sampling, each sample has the same chance of getting the target variable. When a researcher uses a sampling strategy that is not random, the features of the sample chosen are not based on chance but on factors like their own convenience, their own professional judgment, and their own prior experience.

In conclusion,  During physical education classes, students are randomly assigned to teams by selecting names from a hat or bag containing their names on individual pieces of paper.

There is a designated area at a supermarket for shoppers to leave comments. Each week, a satisfied customer will be randomly selected from the feedback forms submitted to win a gift certificate.

Selection bias

Read more about  Random sampling

brainly.com/question/12719645

#SPJ1

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Find the percent change: From 64 feet to 12 feet Round to the nearest whole percent.
mr_godi [17]

Answer:

Percent change is 81.25%

Step-by-step explanation:

To find percent change we find the difference of both numbers

Then we divide by the original number.

To get percentage we multiply by 100

Percent change =\frac{initial - final}{initial \ value}*100

Percent change =\frac{64- 12}{64}*100

= \frac{52}{64}*100

= 81.25

Percent change is 81.25%

3 0
3 years ago
Twice the sum of m and Five
REY [17]

Answer:

2(m + 5)

Step-by-step explanation:

Twice means multiplication.

2 *

Sum means addition.

m + 5

2(m + 5)

Best of Luck!

7 0
3 years ago
Which graph correctly shows point A as the sum of the complex numbers z1 and z2?
aalyn [17]

The graph which correctly shows the point A as the sum of the complex numbers z₁ and z₂ is graph number 4.

<h3>What is complex number?</h3>

A complex number is the combination of real and imaginary number. In a complex number, real part and imaginary part of the number are written together. For example,

a+b<em>i</em>

Here, (a) is the real part while (b) is the imaginary part.

To add the two complex number on the graph, the addition as transition method is used.

In this one complex number is translated to the tip of the other graph. The resultant of addition is equal to the distance between them.

On the graph 4, the transition method of addition is applied.Thus, the graph which correctly shows the point A as the sum of the complex numbers z₁ and z₂ is graph number 4.

Learn more about the complex number here;

brainly.com/question/2218826

#SPJ1

8 0
2 years ago
How to find the missing value with (1, 3) and (4, 7) x=-2
maksim [4K]

Answer:

Step-by-step explanation:

7 0
3 years ago
Please help need 4 and 5 I will make brainliest , 30 points
trasher [3.6K]

She put 1/5 down which means she owes 4/5

620 * 4/5 = 496

She owes $496.00



98 - 10 = 88

She still owes $88.00

5 0
3 years ago
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