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Statistical Methods Applied to Practical Problems

Nature volume 101, page 215 (16 May 1918) | Download Citation



WE have received a copy of the presidential address delivered before the Indian Science Congress at Lahore in January last by Sir G. T. Walker, Director-General of Observatories, India (Calcutta: Thacker, Spink, and Co.). The bulk of the address is devoted to illustrating the application to important practical problems of statistical methods. Illustrations are given of the use of coefficients of correlation in connection with crop prediction, and also to show the extent of co-variation between the fever rate, population, cost of rice, cultivated area, and rainfall, so far as this can be determined by a first-degree regression equation computed from the data of twenty-five years.

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