Question

Q2: Consider the following frequency distribution.
Groups 10-12 12-14 14-16 16-18 18-20 20-22 22-24 24-26 26-28
Frequency
3
30 110 218 275
222 108
32
2
i. Calculate first four moments about X = 20 from the frequency
distribution.
ii. Calculate first four central moments using the relationship between
raw and central moments.
iii. Use the above moments to identify the skewness and kurtosis of the
given frequency distribution.
iv. Interpret the results.
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Answer 1

Answer:

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