Can anyone help me with this question.
What's the best answer?
Choose from these answers:
[(A):variance] [(B):standard deviation] [(C):sample mean] [(D):s-squared] [(E):unbiased estimate]
1.subtract the mean of all the scores from each score, then square that number and get the average of these squared deviations, what do you have?
2.take the square root of the mean of squared deviations from the mean of a set of numbers, what do you have?
A
B
http://www.mathsisfun.com/data/standard-deviation.html
Thanks. Damon.
You are welcome.
To answer these questions, we need to understand the definitions of the terms provided in the options. Additionally, we can use the information provided in each question to match it with the appropriate term. Here's what we can do:
1. Subtracting the mean of all the scores from each score and squaring the result is a step in calculating the variance. The variance represents the average of these squared deviations from the mean. Therefore, the best answer for question 1 is option (A): variance.
2. Taking the square root of the mean of squared deviations from the mean of a set of numbers represents the calculation of the standard deviation. So, the best answer for question 2 is option (B): standard deviation.
In summary:
1. The best answer for question 1 is (A): variance.
2. The best answer for question 2 is (B): standard deviation.