{"id":12326,"date":"2022-10-17T21:44:47","date_gmt":"2022-10-17T16:14:47","guid":{"rendered":"https:\/\/mathemerize.com\/?p=12326"},"modified":"2022-10-17T21:45:35","modified_gmt":"2022-10-17T16:15:35","slug":"find-the-average-expenditure-which-is-being-done-by-the-maximum-number-of-manual-workers","status":"publish","type":"post","link":"https:\/\/mathemerize.com\/find-the-average-expenditure-which-is-being-done-by-the-maximum-number-of-manual-workers\/","title":{"rendered":"Find the average expenditure which is being done by the maximum number of manual workers."},"content":{"rendered":"\n
Expenditure (in Rs)<\/td> | 1000 – 1500<\/td> | 1500 – 2000<\/td> | 2000 – 2500<\/td> | 2500 – 3000<\/td> | 3000 – 3500<\/td> | 3500 – 4000<\/td> | 4000 – 4500<\/td> | 4500 – 5000<\/td><\/tr> |
Manual workers (frequency)<\/td> | 24<\/td> | 40<\/td> | 33<\/td> | 28<\/td> | 30<\/td> | 22<\/td> | 16<\/td> | 7<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\nSolution :<\/h2>\n\n\n\nThe class (1500 – 2000) has maximum frequency i.e. 40, therefore this is the modal class.<\/p>\n\n\n\n Lower limit of the modal class = l = 1500<\/p>\n\n\n\n Class interval h = 500<\/p>\n\n\n\n Frequency of the modal class = \\(f_k\\) = 40<\/p>\n\n\n\n Frequency of the class preceding the modal class = \\(f_{k – 1}\\) = 24<\/p>\n\n\n\n Frequency of the class succeeding the modal class = \\(f_{k + 1}\\) = 33<\/p>\n\n\n\n We know that,<\/p>\n\n\n\n Mode = l + h(\\(f_k – f_{k-1}\\over 2f_k – f_{k-1} – f_{k+1}\\))<\/p>\n\n\n\n = 1500 + 500(\\(40 – 24\\over 2(40) – 24 – 33\\))<\/p>\n\n\n\n = 1500 + 500(\\(16\\over 23\\))<\/p>\n\n\n\n = 1500 + 347.83<\/p>\n\n\n\n = 1847.83<\/p>\n\n\n\n Hence, the average expenditure done by the maximum number of manual workers is 1847.83<\/strong>.<\/p>\n","protected":false},"excerpt":{"rendered":" Question : Expenditure (in Rs) 1000 – 1500 1500 – 2000 2000 – 2500 2500 – 3000 3000 – 3500 3500 – 4000 4000 – 4500 4500 – 5000 Manual workers (frequency) 24 40 33 28 30 22 16 7 Solution : The class (1500 – 2000) has maximum frequency i.e. 40, therefore this is …<\/p>\n |