 Assume that the weights for the following subjects are: English 3, History 2, Mathematics 2, Foreign Languages 2, and Art 1. What would be the average of a student whose marks are: English 80, History 85, Algebra 84, Spanish 82, and Art 90? Solution...  Elements of Precise Surveying and Geodesy - Page 15by Mansfield Merriman - 1899 - 261 pagesFull view - About this book
 | Augustus De Morgan - Annuities - 1838 - 380 pages
...observations 10 and 11 weights of 4 and 1, and the method of finding an average is this : multiply every observation by its weight and divide the sum of the products by the sum of the weights. Such a method was adopted before the theory of probabilities was applied to the subject, as a direction... | |
 | Ezra S. Winslow - Business mathematics - 1853 - 264 pages
...Multiply the weight of the several particles by the squares of their distances from the axis of motion, and divide the sum of the products by the sum of the weights ; the square root of the quotient will be the distance of the centre of gyration from the axis of motion.... | |
 | John Daniel Runkle - Mathematics - 1859 - 460 pages
...rod, measured from a given point in the rod, we multiply each weight by us distance from this point, and divide the sum of the products by the sum of the weights. The quotient iviu be the distance required. The analogy between the two processes suggests an easy... | |
 | Chapin Aaron Harris - 1882 - 860 pages
...may be found by a simple arithmetical rule. Multiply each weight by its carat (pure gold being 24), divide the sum of the products by the sum of the weights, and the quotient will be the carat-value of the mass. The following formulas may be employed for manufacturing... | |
 | Chemistry - 1893 - 598 pages
...the weighted mean of a number of observations of unequal weights, multiply each result by its weight, divide the sum of the products by the sum of the weights, the quotient will be the weighted mean. Example. 38° — 54' — 55.0" X Wt. i = 55 (seconds only).... | |
 | Mansfield Merriman - Geodesy - 1899 - 292 pages
...— JQ+ . . . +p.(* — M n ) = o, from which the most probable value of * is = A^.+A^.+ • • • +A^. The value of z thus found is sometimes called...the sum of the products by the sum of the weights. /,+/,+ ...+/n - ,^ ability of error given by (2), assuming that //' represents the weight of the observation... | |
 | Mansfield Merriman - Geodesy - 1899 - 294 pages
...+/„(* - M„) = 0, from which the most probable value of z is /,J/,+/,J/,+ . . . +pnM, *"~ A+A+--.+A " The value of z thus found is sometimes called the...the sum of the products by the sum of the weights. ability of error given by (2), assuming that h' represents the weight of the observation whose error... | |
 | United States. War Department - 1904 - 1252 pages
...nnsatisf actory . " Multiply the percentage in each subject by the relative weight as above given; then divide the sum of the products by the sum of the weights. This will give the general average. The method is elucidated in the following: Example. \ Subject*.... | |
 | Wesley Clair Mitchell - Business & Economics - 1908 - 870 pages
...for 17 of his 21 industries, weight them by figures obtained from the census returns for occupations, and divide the sum of the products by the sum of the weights. This procedure does not eliminate the original errors in the averages for industries; and census tables... | |
 | United States. War Department - 1916 - 706 pages
...unsatisfactory." Multiply the percentage in each subject l>y the relative weight as above given ; then divide the sum of the products by the sum of the weights. This will give the general average. The method is elucidated In the following: 97 Example. Xo applicant... | |
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