If a field researcher wanted to learn a political organization's pattern of recruitment over time, the researcher mightbegin by interviewing a fairly recent recruit and ask who introduced that person to the organization. Then theresearcher might interview the person named and ask who introduced that person to the political organization.This would be an example of: systematic sampling. accidental sampling. snowball sampling. quota sampling deviant cases sampling.
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Answer:
C. snowball sampling
Step-by-step explanation:
Snowball sampling also known as referral sampling or chain sampling is a sampling method in research where the participants in the research are recruited to find new participants. This is a non-probability sampling method because participants choose other participants through their own insight. Just as a ball takes up more snow as it rolls by, so also this research method takes up more participants as it progresses.
So, when the field researcher who wanted to learn about a political organization's recruiting pattern begins by interviewing a participant who in turn suggests another participant, he has applied the snowball sampling method.
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The vertex form of the equation of a parabola is y = 2(x + 3)2 - 5. What is the standard form of the equation? A. x = 2y2 + 5y + 9 B. y = 2x2 + 5x + 9 C. y = 4x2 + 4x + 4 D. y = 2x2 + 12x + 13
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Answer:
Step-by-step explanation:
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Answer:
It is 19 - 3 = 16 because the exponent of 2 cancels out the square root.
Step-by-step explanation:
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Since we know the sum has to be equal to 100, our equation is:
100=a+(a+x)+(a+2x)+(a+3x)+...+(a+8x)+(a+9x)
the 7th oldest brother is the 3rd youngest, therefore, if we look at our equation, he gets (a+2x) - we know now that 7=a+2x
We can now simplify the first equation by summing up our 'x' and 'a'
we get: 100=10a+45x
In order to resolve the equation (since we have 2 variables), we can use the subtraction method
100=10a+45x
-10(7=a+2x)
100=10a+45x
-(70=10a+20x)
30=25x
1.2 = x
and for 'a' -> 7 = a +2(1.2)
a=4.6
Therefore, the youngest gets 4.6 coins (a), the second 5.8 (a+x) ...
Final answer:
The question involves arithmetic sequences. The first brother gets 5.5 gold coins with subsequent brothers getting 1 more coin than the brother before them. This gradually increases to the tenth brother who gets 14.5 gold coins.
Explanation:
This problem involves the concept of arithmetic sequences where each term is a constant amount different from the previous term. Given the seventh oldest brother receives 7 gold coins, we can denote the amount of money the first brother gets as x. The increment in each sequential brother's amount is then 1.
Firstly, denote the amount of money the first brother gets as x. Since each subsequent brother gets 1 more gold coin, we can denote the amount the other brothers receive as follows: x, x+1, x+2, ..., x+6 (for the seventh brother), ..., x+9 (for the tenth brother).
As the problem states that the total gold the brothers receive is 100, you would set up the equation: 10x + 45 = 100, where 45 is the sum of the increments from 1 to 9. Solving this equation for x, we get x=5.5. This means the first brother received 5.5 gold coins and each subsequent brother received 1 more than his immediate predecessor.
Learn more about Arithmetic Sequences here:
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Answer:
y=0.35m+50
Step-by-step explanation:
Step one:
given data
the daily fee= $50
cost per mile driven =$0.35
Let m = the number of miles
let y be the total cost
Step two
Required
the expression for the total cost is
An algebraic expression that shows the amount he will pay for the van. is
y=0.35m+50
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The standard unit for the measurement of power is known as: B. Watts.
What is measurement?
Measurement is a process through which the size, magnitude or other physical quantities that are associated with an object is taken, especially for the purpose of a scientificresearch (experiment).
In Science, some of the standard unit of measurements with the correct physical quantities include the following:
- Energy: Joules.
- Velocity: meters per second.
- Pressure: newtons per meter.
- Power: Watts.
In conclusion, we can deduce that Watts is the standard unit for the measurement of power.
Read more on power here: brainly.com/question/23901751
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Answer:
watts
Step-by-step explanation:
watt
hope this will help u
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Well, first of all, every positive number has two square roots.
Their digits are the same, but one is positive and one is negative.
The square root of 343 is an irrational number, so it can't ever be
exactly written with digits. As a decimal, it never ends or repeats,
and as a fraction, it can't be written at all.
The positive square root starts out 18.52025... and keeps going forever.
The other square root is the negative of that same number.
When you multiply either of them by itself, the product is close
to 343 . The more decimal places you include, the closer it gets,
but it can never be exactly 343 .