A distribution is skewed if Mean , Median , Mode are
A) Equal
B) Not equal
C) Symmetric
D) None
Correct Answer:
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Q6: For comparing variability in scores of 2
Q7: Variance = -----
A)(S.D)2
B)?S.D
C) (S.D)3
D)1/S.D
Q8: In Standard deviation , deviations are taken
Q9: Co. Efficient of variation is equal to
A)(S.D/Mean)x100
B)(S.D/Range
Q10: ----- means lack of symmetry
A)Skewness
B)Kurtosis
C)Range
D)None
Q12: ----- is a measure of peakedness
A)Skewness
B)Kurtosis
C)Range
D)Variance
Q13: Skewness may be ----
A)+ or -
B)Zero
C)Both
D)None
Q14: When the frequency curve is more peaken
Q15: ----- are devices for measuring differences in
Q16: Index numbers are expressed in
A)Average
B)Percentage
C)Both
D)None
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