A researcher reported that for 100 college students, the mean was 80 and the standard deviation was 12.6. How is the standard deviation best interpreted?
A) The variability of the scores around the mean was 12.6.
B) The variability of the scores from each other was 12.6.
C) The minimum value is 0, so 12.6 is a large standard deviation.
D) All of the scores were within 12.6 of the mean (i.e., 67.4-92.6) .
E) The score of a person is expected to deviate 12.6 from one time to another.
Correct Answer:
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Q1: Select the false statement below.
A) The classification
Q2: Select the false statement below.
A) A measure
Q4: Select the true statement concerning percentiles and
Q5: A researcher determined that the correlation between
Q6: Select the false statement below.
A) A correlation
Q7: Select the false statement concerning the range.
A)
Q8: When the data distribution is skewed, which
Q9: When the data distribution is normal, which
Q10: The mean of T-score distribution is:
A) 50.
B)
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