The average difference between the items in a distribution and the median or mean of that series is known as:
A) Range
B) Mean deviation
C) Inter-quartile range
D) Standard deviation
Correct Answer:
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Q10: Statistics is helpful in:
A)formulating and testing hypothesis
B)prediction
C)formulation
Q11: A set of vertical bars whose areas
Q12: The value in a series of observations
Q13: What is the median of the sample
Q14: Karl Pearson has expressed the relationship between
Q16: If two events cannot occur simultaneously at
Q17: If two events A and B are
Q18: Those in which the occurence or non
Q19: If the probability of drawing a spade
Q20: The coefficient of correlation
A)has no limit
B)should be
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