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please solve this in 45 mintues hand written SUBJECTIVE Question 1. Calculate the arithmetic mean, variance, and the coefficient of variation for the given data:

please solve this in 45 mintues hand written

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SUBJECTIVE Question 1. Calculate the arithmetic mean, variance, and the coefficient of variation for the given data: Marks 31-35 36-40 Obtained 41-45 46-50 51-55 56-60 61-65 Number of students 5 12 25 30 25 12 5 Question 2. For the given below data, determine , and 82 and also measure the kurtosis and identify which distribution it indicates. Age 5-9 10-14 15-19 20-24 25-29 30-34 Frequency 2 29 37 16 14 2 Question 3. The following grouped frequency table of the revenue, x, of 30 firms in a small city (in Rs 1000s). a. Estimate the mean for the given data, using class- Revenue Frequency midpoints as representative values. Rs 26

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