SKEWNESS Skewness is asymmetry in a statistical distribution, in which the curve appears distorted or skewed either to the left or to the right .
TUSHAR AHMED Roll- 149
SKEWED DISTRIBUTION SYMMRTRICAL DISTRIBUTION MEAN= MEDIAN= MODE POSITIVE SKEWED DISTRIBUTION MEAN> MEDIAN> MODE NEGATIVE SKEWED DISTRIBUTION MEAN< MEDIAN< MODE
SALMA AKTER Roll- 19
MESURES OF SKEWNESS ABSOLUTE MEASURE OF SKEWNESS SKP= Mean- Mode KARL PEARSON’S COEFFICIENT OF SKEWNESS SKP= Mean- Mode/Standard deviation
SAFIA ZERIN BADHON Roll- 82
MEASURES OF SKEWNESS BOWLEY’S COEFFICEINT OF SKEWNESS SKP= Q3+Q1-2 Median/Q3-Q1 KELLY’S COEFFICEINT OF SKEWNESS SKP= P90-2P50+P10/P90-P10 or SKP= D9-2D5+D1/D9-D1
RUBAIYAT ALAM Roll- 97
MOMENTS Moments is a familiar mechanical term for the measure of a force with reference to its tendency to produce rotation.
MOHAMMAD SADMAN SAKIB Roll- 67
MESURES OF MOMENTS FOR UNGROUPED DATA The rth moment of a variable X about the arithmetic mean X’ is given by: µr=1/N The rth moment of a variable X about any arbitrary point A is given by: µ’r=1/N
MESURES OF MOMENTS FOR GROUPED DATA r=1/N & ’r=1/N
TOWFIQ AHMED Roll- 91
KURTOSIS In statistics, Kurtosis is the degree of flatness or peakedness in the region of mode of a frequency curve. measured relative to the “PEAKEDNESS” of the normal curve. Measures by coefficient of Kurtosis computed as k=
NUSRAT JAHAN Roll- 58
“PEAKEDNESS” OF THE NORMAL CURVE LEPTOKURTIC MESOKURTIC PLATYKURTIC
SHAMIM SARKER Roll- 214
MESURES OF KURTOSIS Kurtosis is measured by or its derivative = &
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