Calculate Harmonic mean for the following series: (1) 10,20,25,40,50 (ii) X: 0-10 10-20 20-30 30-40 40-50 F: 8 15 20 4 3
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In a normal distribution 31% of the items are under 45 and 8% of the items are over 64. Find the mean and S.D. of the distribution.
The following data is given for variable values and frequencies x: 0,1,2,3,4,5,6,7,8 and frequencies f: 1,8,28,56,70,56,28,8,1. Find Mu one, Mu two, Mu three and Beta two of the distribution.
In FOUR tossed of a coin , let x be the number of heads. calculate the expected values of x.