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Tied Ranks Equal or Repeated Rank
When two or more items have equal values it is difficult to give ranks to them. In that case the items are given the average of the ranks they would have received. If they are not tied. For example if two individuals are placed in the seventh place they are each given the rank 7+8/ 2 = 7.5 which is common rank to be assigned and the next will be 9 and it there equal at the seventh place they are given the rank 7+8+9/ 3 = 8 which is the common rank to be assigned to each, and the next rank will be10 in this case. A slightly different formula is used when there is more than one item having the same value. The formula is
R-1-6 ∑D2+ 1/12(m3-m) + 1/12(m3-M).......... / n3- n
Calculation of Standard Deviation - Discrete Series There are three methods for calculating standard deviation in discrete series": a. Actual Mean Methods: It inc
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Rank Methods Spearman s When the variables under consideration are not capable of quantitative measurement but can be arranged in serial order( ranks) we find correla
Classification of documents by information Characteristics: The schemes of classification advocated by Hanson and Grogan are mainly based on the information characteristics of
Solve the following Linear Programming Problem using Simple method. Maximize Z= 3x1 + 2X2 Subject to the constraints: X1+ X2 = 4 X1 - X2 = 2 X1, X2 = 0
A paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y paper i
Inflation Inflation is a general increase in the price of goods and services. The inflation rate, as measured by the
#questioA paper mill produces two grades of paper viz., X and Y. Because of raw material restrictions, it cannot produce more than 400 tons of grade X paper and 300 tons of grade Y
Scope of operations research
Each day you own 0 or 1 stocks of certain commodity. The price of the stock is a stochastic process that can be modeled as a Markov chain with transition rates as follows
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