I. 27x² + 120x + 77 = 0 27x² + 21x + 99x + 77 = 0 3x(9x + 7) + 11(9x + 7) = 0 (9x + 7) (3x + 11) = 0 ∴ x = -7/9 , -11/3 II. 56y² + 117y + 36 = 0 56y² + 96y + 21y + 36 = 0 8y(7 y + 12) + 3(7 y + 12) = 0 (8 y + 3) (7 y + 12) = 0 ∴ y = -3/8 , -12/7 Hence, no relationship cannot be established between x and y.
The limits of multiple correlation coefficient R1.23 are:
The Excess Kurtosis of the Geometric distribution with parameter p is:
For the given figures of production of a sugar factory, the estimate of the production for 1976 using straight line trend with origin at the year 1972 b...
For the distribution
X: 1 0 1
P(x): 0.3 ...
In one way ANOVA, σ2 is estimated by:
For a distribution, mean is 40, median is 40.5 and mode is 41. The distribution is:
Which of the following options is correct when data is classified on the basis of attributes?
For a distribution, the mean is 10, variance is 16, Y1 is +1 and β2 is 4. The distribution is:
The probability of getting a total of 7 on two dice thrown together is:
Which option is incorrect for the component of ti.me series.
