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The mean of 11 items overline(X). If fir...

The mean of 11 items `overline(X)`. If first item is increased by 1, second item by 2 and so on, then new mean becomes `lamda` more than `overline(X)` and `lamda` is

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The mean of n items is overline(X) . If the first item is increased by 1, second by 2 and so on, then the new mean is

The mean of n items is bar(x) . If the first item is increased by n, second by n-1 and so on and last by 1, then the new mean is

The mean of n observation is barX . If the first observation is increased by 1^(2) , second by 2^(2) and so on, then the new mean is

The mean of n observations is X . If the first item is increased by 1, second by 2 and so on, then the new mean is (a) X +n (b) X +n/2 (c) X +(n+1)/2 (d) None of these

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Mean of a set of numbers is bar(x) . If each number is increased by lambda , then the mean of new set is

The mean weight of 9 items is 15. If one more items is added to the series now the mean becomes 16. The value of 10^(th) item is

Find the mean (overline(x)) of first 5 even natural numbers.

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RESONANCE DPP ENGLISH-JEE MAINS-All Questions
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  2. Let F(x) =1+f(x)+(f(x))^(2)+(f(x))^(3), where f(x) is an increasing di...

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  3. The mean of 11 items overline(X). If first item is increased by 1, sec...

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  4. Let mean of 100 data points be 55 and variance be 16. Now if every ...

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  5. underset(xto0)(lim)(ln(2+x^(2))-ln(2-x^(2)))/(x^(2)) is equal to

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  6. If function y=f(x) has only two points of discontinuity say x1,x2, whe...

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  8. If alpha is the only positive root of (2^(2014)-1)x^2+(2-2^(2014))x-1=...

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  9. The coefficient of x^(49) in the product (x-1)(x-3)(x-99)i s a. -99^...

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  10. Find the principal argument of the complex number sin(6pi)/5+i(1+cos(6...

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  11. In an equilateral triangle, the inradius and the circumradius are c...

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  12. If cos x=t a n x , then which of the following is true? (a)1/(sinx)+...

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  13. a(1),a(2),a(3)…………,a(n) are in A.P. and a(1)+a(3)+a(5)+a(7)+a(9)= 20 t...

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  14. f(x)=cos^(-1)((-2-x^2)/(x^2+2x+2)),then (a)f(-1/2)=2tan^(-1)(1/2) ...

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  15. Let A ,B ,C are three sets such that n(A)=25 ,n(B)=20 ,n(C)=27 ,n(AnnB...

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  16. If statements p and q take truth values as T T ,T F ,F T ,F F in order...

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  17. All letters of the word 'RACHIT' are permuted in all possible ways ...

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  18. The sum of the series 1+4+3+6+5+8+ upto n term when n is an even numbe...

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  19. The positive integers p ,q and r are all primes if p^2 − q^2 = r , t...

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  20. The marks of some students were listed out of a maximum 75. The SD ...

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