Frequency Curve Quiz PDF: Questions and Answers - 107

MCQ 531: The moment about mean which is indication of flatness of frequency curve is classified as

1. third moment
2. second moment
3. first moment
4. fourth moment

MCQ 532: The moment about mean which is considered as measure of dispersion and is equivalent to variance is called

1. eighth moment
2. fifth moment
3. first moment
4. second moment

MCQ 533: If the coefficient of variation is 13.4% and the standard deviation is 12 then the arithmetic mean of that set of observations is

1. 69.5
2. 99.5
3. 59.5
4. 89.55

MCQ 534: The coefficient of quartile deviation is 10.34% and the difference of first and third quartile is 15 then the sum of third and first quartile is

1. 155
2. 165
3. 175
4. 145

MCQ 535: The letter used to denote variance of population is

1. 2σ²
2. 2Σxy
3. 2Σ²
4. σ²