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The variance sigma^(2) of the data...

The variance `sigma^(2)` of the data

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If each observation of a raw data, whose variance is sigma^(2) , is multiplied by lambda , then the variance of the new set is

If each observation of a raw data, whose variance is sigma^(2) , is multiplied by lambda , then the variance of the new set is

If each observations of a raw data whose variance is sigma^(2) is multiplied by K, then the variance of the new set is

For two data sets, each with size 5, the variances are given to be 3 and 4 and the corresponding means are given 2 and 4, respectively. The variance of the combined data set is

If the median of the data 6,7,x-2,x,18,21 written in ascending order is 16. Then the variance of the data is

If the median of the data 6,7,x-2,x,18,21 written in ascending order is 16.Then the variance of the data is

The variance of the data 2001,2003,2006,2007,2009,2010 is

The variance of the data 1001,1003,1006,1007,1009,1010 is

For two data sets,each of size 5, the variances are given to be 4 and 5 and the corresponding means are given to be 2 and 4, respectively. The variance of the combined data set is (1) (11)/(2) (2) 2 (3) (13)/(2) (4) (5)/(2)

JEE MAINS PREVIOUS YEAR-JEE MAIN 2024 ACTUAL PAPER-Question
  1. If x^(2)-y^(2)+2hxy+2gx+2fy+c=0 is the locus of a point,which moves su...

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  2. Let f:R rarr R be a function defined by f(x)=(x)/((1+x^(4))^(1/4)) ,an...

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  3. The variance sigma^(2) of the data

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  4. Let a line passing through the point (-1,2,3) intersect the lines L(1)...

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  5. Consider two circles C(1):x^(2)+y^(2)=25 and C(2):(x-alpha)^(2)+y^(2)=...

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  6. Let S(n) be the sum to "n" -terms of an arithmetic progression 3,7,11,...

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  7. The number of real solutions of the equation x(x^(2)+3|x|+5|x-1|+6|x-2...

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  8. Let Y=Y(X) be a curve lying in the first quadrant such that the area e...

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  9. The area of the region enclosed by the parabola (y-2)^(2)=x-1 ,the lin...

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  10. The number of symmetric relations defined on the set {1,2,3,4} which a...

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  11. Let alpha=sum(k=0)^(n)(((""^(n)C(k))^(2))/(k+1)) and beta=sum(k=0)^(n-...

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  12. In an examination of Mathematics paper,there are "20" questions of equ...

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  13. If one of the diameters of the circle x^(2)+y^(2)-10x+4y+13=0 is a cho...

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  14. The distance of the point Q(0,2,-2) form the line passing through the ...

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  15. lim(x rarr0)(e^(2|sin x|)-2|sin x|-1)/(x^(2))

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  16. Let "a" be the sum of all coefficients in the expansion of (1-2x+2x^(2...

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  17. The solution curve of the differential equation y(dx)/(dy)=x(log(e)x-l...

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  18. Let vec a=3 hat i+hat j-2 hat k,vec b=4 hat i+hat j+7 hat k and vec c=...

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  19. Three rotten apples are accidently mixed with fifteen good apples. Ass...

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  20. The area of the region {(x,y):y^(2)le4x,x<4,(xy(x-1)(x-2))/((x-3)(x-4)...

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