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Start learning 50% faster. Sign in nowI. 2x² - 12 x + 16 = 0 2x² - 8x - 4x + 16 = 0 2 x (x – 4) – 4 ( x – 4 ) (2 x – 4 ) (x – 4) x = 4, 2 II. 4y² - 8 y - 12 = 0 4y² - 12y + 4 y - 12 = 0 4 y (y – 3) + 4 ( y – 3 ) (4y + 4 ) (y – 3) y = - 1, 3 Hence relationship between x and y cannot be established.
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:
