Task option 1 1. The primary data on the income (Ls) of the company employees are given: 140, 150, 150, 200, 200, 250, 250, 250, 300, 200, 250, 400, 400, 400, 400, 500, 450, 400, 350, 100, 120, 130, 140, 110, 120, 700, 800, 700, 400, 500 Form a variation series (simple and frequency). Calculate the mean, variance. Find mode and median. Convert variation series to interval. The calculation of the width of the interval is performed according to the Sturges formula. Find mode and median. 2. In order to study the quality of parts, a batch of 100 parts was checked at the enterprise. The results are presented in the following table: Groups of parts 40-50 50-60 60-70 70-80 80-90 90-100 100- 110- Total by weight, g 110 120 Number of parts 2 4 12 18 21 24 11 8 100 Determine the mean, variance, mode, median, Ist and 3rd quartiles, coefficient of variation, plot a histogram, find asymmetry and kurtosis. Calculated indicators indicate in the figure