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In a very hotly fought battle atleast 70% of the combatants lost an eye, atleast 75% lost an ear, atleast 80% lost an arm and atleast 85% lost a leg. How many atleast must have lost all four?
Two random variables have the regression lines
3x-2y = 26 and 6x+y = 31
i)
ii)
iii) Find the mean values Of x & y and rxy. Also find out the ratio of two variances. In particular is 4, what do you conclude about ? Also show that the regression estimate Of y for x — O is 13, where as the regression estimate Of x corresponding to y 13 is —3, Explain the cause of difference.
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Find the multiple and partial correlations. Also find the regression equation of x1 on x2 and x3.
Find the multiple and partial correlations. Also find the regression equation of on and x3.
In a state with a total population of 70,000 adults, 34, 000 are males and out of a total of 5000 graduates, 700 are females. Out of 1200 graduate employees of the state 200 are females. Is there any sex bias in education among people? The state holds that no distribution is made in appointments with respect of sex. How far this claim is substantiated by the data given above?