Home
Class 12
MATHS
Sum of squares of deviation of 10 observ...

Sum of squares of deviation of 10 observations measured from 5 is 17 and sum of squares ofobservations is 170 then mean of observation is

Promotional Banner

Topper's Solved these Questions

  • INVERSE TRIGONOMETRIC FUNCTIONS

    RESONANCE DPP|Exercise All Questions|15 Videos

  • MATRICES

    RESONANCE DPP|Exercise All Questions|7 Videos

Similar Questions

Explore conceptually related problems

The algebraic sum of deviations of 10 observations measured from 15 is 7 The mean is

The means of 5 observations is 16. Find the sum of these observations.

If the sum of the deviations of 50 observations from 30 is 50, then the mean of these observations is

The sum of deviations of n observations about 25 is 25 and sum of deviations of the same n observations about 35 is -25 . The mean of observations is

If the mean of 10 observations is 15, then the sum of these observations is

AM of n observations is M.If the sum of (n-5) observations is R, then mean of remaining 5 observations is

The sum of the squares of deviation of 10 observations from their mean 50 is 250, then coefficient of variation is

The algebraic sum of the deviations of 20 observations measured from 30 is 2. What would be the mean of the observations?

RESONANCE DPP-JEE MAINS-All Questions
  1. A relation on set ={1,2,3,4,5} is defined as R="{"a-b"|" is prime numb...

    Text Solution

    |

  2. Let U={xcN,xle10},A={x inN,1lex^(3)lt150}and B={x inN, x is prime numb...

    Text Solution

    |

  3. Sum of squares of deviation of 10 observations measured from 5 is 17 a...

    Text Solution

    |

  4. If alpha,beta in R and the quadratic equations x^2+2x+7=0a n d4x^2+al...

    Text Solution

    |

  5. Let A and B be two square matrices satisfying A+BA^(T)=I and B+AB^(T)=...

    Text Solution

    |

  6. The function f:(-oo, 1] rarr (0, e^(5)] defined as f(x)=e^(x^(3)+2) is

    Text Solution

    |

  7. If the point P(4, -2) is the one end of the focal chord PQ of the para...

    Text Solution

    |

  8. Let f(x)=(sin {pi[x-pi]})/(1-[x^(2)]), where [.] stands for the greate...

    Text Solution

    |

  9. if A[{:(5,-3),(111,336):}] and det(-3A^(2013)+A^(2014))=alpha^(alpha)+...

    Text Solution

    |

  10. If x^2+a x-3x-(a+2)=0 has real and distinct roots, then the minimum va...

    Text Solution

    |

  11. If a and b are the solutions of equation log5(log(64)(|x|)-1/2+25^x)=2...

    Text Solution

    |

  12. Tangents are drawn to the circle x^2+y^2=50 from a point "P lying on ...

    Text Solution

    |

  13. The value of int(-pi/2)^(pi/2)1/(e^(sin x)+1) dx equal to

    Text Solution

    |

  14. Show that the function f(x)=3x+ 2 is one-one and onto

    Text Solution

    |

  15. The total number of ordered pairs (x, y) satisfying |y|=cosx and y=si...

    Text Solution

    |

  16. Locus of a point that is equidistant from the lines x+y-2=0a n dx+y-1=...

    Text Solution

    |

  17. If the ellipse x^2/4 + y^2 =1 meets the ellipse x^2 + y^2/a^2 =1 in fo...

    Text Solution

    |

  18. If A is a square matrix such that A(a d j\ A)=[5 0 0 0 5 0 0 0 5] ,...

    Text Solution

    |

  19. A variable circle passes through the fixed point (2, 0) and touches y-...

    Text Solution

    |

  20. If ("lim")(xrarr0)({(a-n)n x-tanx}sinn x)/(x^2)=0, where n is no...

    Text Solution

    |