In order to maximize the chances that experimental groups represent the population of interest, researchers should conduct random sampling and random group assignment
Explanation:
The terms Random sampling and Random group assignment are greatly different in process of the sample selection. The study related to the determination of how sample participants can be drawn from the population refers to the process of Random sampling. The sample participants are subjected to a treatment by the usage of a random procedure comprises the Random group assignment.
When a researcher wants validate externally then random selection can be used. When a researcher wants to determine the effects of treatment within that group which is known as determination of internal validity then he can opt for Random group assignment.
Answer:
In order to maximize the chances that experimental groups represent the population of interest, researchers should conduct random sampling/random group assignment.
Explanation:
Random selection is a representation of the sample of people for your research from a community. Random assignment is the assigning of the sample that describes various groups or operations in the study.
Reasons:
Thus we can say in order to maximize the chances that experimental groups represent the population of interest, researchers should conduct random sampling/random group assignment.
To learn more about random sampling/random group assignment, refer:
B. x/3
C. x/4
D. x/5
E. x/6
Answer:
I believe the answer is c.) x=4
Step-by-step explanation:
I saw this on a webpage:
The moment we see “x,” we can consider picking numbers. The key here is contemplating how complicated the number should be. Swim with the current – let the question tell you. A quick look at the answer choices reveals that x could be something simple. Ultimately, we’re just dividing this value by 2, 3, 4, 5, or 6.
Keeping this in mind, let’s think about the first line of the question. If there are 3 times as many adults as children, and we’re keeping things simple, we can say that there are 3 adults and 1 child, for a total of 4 people. So, x = 4.
Now, we know that among our 3 adults, there are twice as many women as men. So let’s say there are 2 women and 1 man. Easy enough. In sum, we have 2 women, 1 man, and 1 child at this picnic, and a total of 4 people. The question is how many men are there? There’s just 1! So now we plug x = 4 into the answers and keep going until we find x = 1. Clearly x/4 will work, so C is our answer. The key was to let the question dictate our approach rather than trying to impose an approach on the question.
Answer: C
x/4
Step-by-step explanation:
See attached for explanation.
The expression of the total cost of clothes will be 20 + j.
The analysis of mathematical representations is algebra, and the handling of those symbols is logic.
The amount you spend if you buy a shirt for $20 and jeans for j dollars.
Then the expression of the total cost of clothes.
The expression is given as the sum of the cost of the shirt and the cost of the jeans.
Then the expression will be
⇒ $20 + $j
⇒ 20 + j
The expression of the total cost of clothes will be 20 + j.
More about the Algebra link is given below.
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B. –45m5n7
C. –10mn3
D. 45m5n7
Answer:
A. 10mn³
Step-by-step explanation:
To divide numbers in power form but to the same base, we simply subtract the powers and then divide the coefficients of the the bases.
-50m³n⁵ /-5m²n²
=10m⁽³⁻²⁾ n⁽⁵⁻²⁾
=10mn³
A negative number divided by a negative number = a positive number.
Which of the following composite functions expresses the calories, as a function of time, Leona burns while boxing with heavy gloves?
c[b(t)] = 467.5t
c[b(t)] = 426.1t
b[c(t)] = 467.5t
b[c(t)] = 426.1t
Answer:C. I took the test.
Step-by-step explanation: