What percentage of cases for a normally distributed variable lies within 1 SD above and below the mean?
A) 34%
B) 50%
C) 68%
D) 95%
Correct Answer:
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Q9: Which of the following indexes of dispersion
Q10: Which of the following indexes of dispersion
Q11: Which of the following indexes involves the
Q12: Which of the following indexes involves the
Q13: Which of the following statistical symbols does
Q15: In calculating standard scores, which two descriptive
Q16: A z score of 0.00 corresponds to
Q17: A z score of -1.00 corresponds approximately
Q18: An extreme outlier is:
A) More than 3
Q19: In a boxplot, information about a distribution
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