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Start learning 50% faster. Sign in nowLet the weight of the pieces of diamond be 2x, 3x, 4x, 5x Total weight of diamond = 2x + 3x + 4x + 5x = 14x Price ∝ (weight)2 => Price = k(weight)2 ; where, K is constant Original price = k(14x)2 Price of pieces = (4kx2 + 9kx2 + 16kx2 + 25kx2) = 54kx2 Loss in price = 196kx2 – 54kx2 = 142kx2 which is given as 142,000 => 142kx2 = 142000 => kx2 = 1000 Original price = 196kx2 = 196 x 1000 = 196000
The median of the following observations 10, 11, 9, 12, 10,10, 12, 10, 9,11 is:
For the frequency distribution of income (in lakh) of the employees in factory
Class 1.5-2.5 �...
Which one is not basis of classification of data.
If the mean and variance of a binomial distribution are 5 and 4, respectively, then the value of n is:
The second quartile for the following data 38, 39, 40, 52, 59, 67, 73, 77, 149, 248 is:
The sample sizes for two cases were 15 each with means as 104 and 114 respectively and variances as 200 and 510 respectively.
Let the null hyp...
If r and R denote correlation and multiple correlation coefficient for the data set for X1, X2 and X3 . Which option is correct?
Completely randomized design is based on the principles of _________ and randomization only.
If the second and third moment about the origin are 8 and 18 and the third moment about mean is -14 , then the first moment about the origin is:
