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A set of scores ranges from a high of X=24 to a low of X=12 and has a mean of 18. Which of the following is the most likely value for the standard deviation for the scores? ( Know the answer already, I juste need a good explanation on how the answer is found).

Respuesta :

zaynahmakini
Step 1: Find the mean.
Step 2: Subtract the mean from each score.
Step 3: Square each deviation.
Step 4: Add the squared deviations.
Step 5: Divide the sum by the number of scores.
Step 6: Take the square root of the result from Step 5.

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