If everyone in the population has an equal chance of inclusion in a study, then one would say that the study used a Random sampling technique for the study. (Option A.)
The way in which we select a sample of individuals to be research participants is critical. Random sampling makes sure of the population which has to be random and need not be pre determined . The procedure we plan to implement will determine if we are biased or not , if the people know each other or not etc.
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95.44% IQ scores are between 77 and 125
We're given,
Mean (a)=101
standard deviation (b)=12
To find : ![P[77 < x < 125]](https://tex.z-dn.net/?f=P%5B77%20%3C%20x%20%3C%20125%5D)
Using Empirical Rule:
∴ 
![P[\frac{77-101}{12} < \frac{x-a}{b} < \frac{125-101}{12}]\\](https://tex.z-dn.net/?f=P%5B%5Cfrac%7B77-101%7D%7B12%7D%20%3C%20%5Cfrac%7Bx-a%7D%7Bb%7D%20%3C%20%5Cfrac%7B125-101%7D%7B12%7D%5D%5C%5C)
![=P[-2 < z < 2]\\](https://tex.z-dn.net/?f=%3DP%5B-2%20%3C%20z%20%3C%202%5D%5C%5C)
![=P[Z < 2]-P[Z < -2]\\](https://tex.z-dn.net/?f=%3DP%5BZ%20%3C%202%5D-P%5BZ%20%3C%20-2%5D%5C%5C)
=95.44% (approx)
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Answer:
1/25
Explanation:
100 OUT THE 25 AGES ARE THE CORRECT STUD'S
The little piggies do their hog work as soon as they get home from school.
<h3>What is Riddle?</h3>
A riddle is known to be a kind of statement or a question that is said to have its meaning to be concealed or veiled and it is one that needs to be solved.
Note that The little piggies do their hog work as soon as they get home from school as it connote when piglets are born and how they start walking.
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Answer:
Choice A. $2,392 is the correct answer ッ
Explanation:
