# DIBRUGARH UNIVERSITY B.COM 3RD SEMESTER: BUSINESS STATISTICS MOST IMPORTANT TOPICS

MOST IMPORTANT TOPICS FOR BUSINESS STATISTICS EXAM
PRACTICAL PROBLEMS CARRYING 7 TO 8 MARKS EACH (35 MARKS EXPECTED FROM THIS TOPIC)

MEASURE OF CENTRAL TENDENCY/DISPERSION
1. CALCULATION OF SD, VARIANCE AND COEFFICIENT OF VARIATION
2. CALCULATION OF MISSING FIGURE
3. CALCULATION OF MEAN, MEAN DEVIATION AND MEDIAN DEVIATION

CORRELATION AND REGRESSION ANALYSIS
1. CALCULATION OF REGRESSION EQUATIONS
2. REGRESSION EQUATIONS ARE GIVEN AND WITH THEIR HELP FIND MEAN, CORRELATION AND SD
3. KARL PEARSON COEFFICIENT OF CORRELATION (5 FORMULAS)
4. RANK CORRELATION

INDEX NUMBER
1. WEIGHTED INDEX NUMBER
2. CALCULATION OF INDEX NUMBER UNDER VARIOUS METHOD WHEN PRICES AS WELL AS QUANTITIES ARE GIVEN
3. TIME REVERSAL AND FACTOR REVERSAL TEST
4. BASE SHIFTING AND CALCULATION OF REAL WAGES.

TIME SERIES
1. LEAST QUARE METHOD
2. MOVING AVERAGE METHOD INCLUDING WEIGHTED AVERAGE METHOD
3. SEMI AVERAGE METHOD

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