using empirical formula find mode if mean is 8.32 and median is 8.05
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3 Median= 2Mean+Mode
Mode= 3(8.05)-2(8.32)
Mode=24.15-16.64
Mode=7.51
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Empirical relationship between mean, median and mode states that, in a skewed distribution, the difference between the mean and mode is almost equal to the three times the difference between the mean and the median.
The empirical formula comes from,
Mean - Mode = 3 (Mean - Median)
Mean - Mode = 3 Mean - 3 Median
3 Median = Mode + 3 Mean - Mean
3 Median = Mode + 2 Mean
From given, we have,
Mean = 8.32
Median = 8.05
3 × 8.05 = Mode + 2 × 8.32
24.15 = Mode + 16.64
Mode = 24.15 - 16.64
∴ Mode = 7.51
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