1. You are given the following table where the number of stocks falling in the particular price categories in the Chittagong Stock Exchange (CSE): Stock Prices (Tk.) No. of Stocks 50 60 7 60 70 11 70 - 80 19 80 - 90 25 90 100 5 +X +Y Here, X & Y are the last two digits of your student ID (i.e. 19100012). [If your ID is 19300012 then, the No. of Stocks in the last row (90 100) will be 5+1+2 = 8]. Estimate the following: a) Find the Range of stock prices (Tk.) and complete the frequency distribution table. b) Find: i. Mean ii. Median iii. Mode 2. 250 garment factories have the following distribution of an average number of workers in various income groups: Income 1000 - 1200 1200 - 1400 1400 - 1600 1600 - 1800 1800 - 2000 Groups: Number of 53 47 43 45 62 companies: Workers: 11 7 14 9. 12 a) Find the mean salary paid to the workers of the garment factories.