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Paladinen [302]
3 years ago
8

Tammy wanted to study only students who do very well in class because these students would best help her test her theory. She at

tained the names of high achieving students, asked for volunteers, and then interviewed them. Which sampling design does this example reflect? A. Quota sampling B. Reliance on available subjects C. Purposive sampling D. Snowball sampling
Social Studies
1 answer:
sesenic [268]3 years ago
5 0

Answer:

C. Purposive sampling

Explanation:

Intention sampling is a method of unlikely sampling in which researchers depend in their own judgment when choosing population members to participate in their study. purposeful sampling is useful because it provides the researcher with a wide range of non-probability sampling techniques to draw on.

The key goal of purposeful sampling is to concentrate on particular characteristics of a population that are of interest, so that you can better address your research questions.

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A jury pool consists of 6 men and w women. If 2 jurors are selected from the pool at random, is the probability that 2 men will
telo118 [61]

Answer:

Yes, it is higher if w ≥ 3.

Explanation:

Given,

Number of men = 6,

Number of women = w,

Ways of choosing 2 men = C(6,2),

There can be two cases,

Case 1 :

If w ≥ 3,

Then the number of ways of choosing 1 men and 1 women > Ways of choosing two men,

So, the probability of choosing 1 men and 1 women is greater than that of choosing two men,

For eg : If w = 8,

^8C_1\times ^6C_1>^6C_2

\implies \frac{^8C_1\times ^6C_1}{^{14}C_2}>\frac{^6C_2}{^{14}C_2}

Similarly if w = 3,

\implies \frac{^3C_1\times ^6C_1}{^{14}C_2}>\frac{^6C_2}{^{14}C_2}

Case 2 :

If 0 < w < 3,

Then the number of ways of choosing 1 men and 1 women < Ways of choosing two men,

So, the probability of choosing 1 men and 1 women is less than that of choosing two men

eg :

\frac{^2C_1\times ^6C_2}{^{14}C_2}

7 0
3 years ago
Why were Sumerian cities called city-states?
Veronika [31]

Answer:

the cities were like small, independent countries. They each had their own ruler and their own farmland to provide food.

Explanation:

learned about this in like 6th grade

8 0
3 years ago
Read 2 more answers
Which of the following terms and braces idea that the United States had the right to control the North American continent
hichkok12 [17]

Answer:

B) Manifest destiny.

Explanation:

The Manifest Destiny is a concept, arduously followed in the 19th century, that sees it´s the right, the natural destiny of the United States to expand accross the continent until the shores of the Pacific. Such an outcome is God´s will, as geography, circumstances and history all favor the United States. It was a major drive of expansion for a good part of the century until it was fulfilled with victory in the Mexican-American War and the territories taken from Mexico.

8 0
3 years ago
Opposite of overpopulation of europe
Paladinen [302]

Answer:

human overpopulation

Explanation:

it is when there is too many people for the environment to sustain.

8 0
3 years ago
Which of these products or services is likely to have an inelastic supply in the short run?
STALIN [3.7K]
Cargo ships because <span>even if demand goes up, the supply won't increase in the short run, because it will take months or years to build some more ships. That's inelastic supply.</span>
5 0
3 years ago
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