Home
Class 10
MATHS
Fill in the blanks If the mean of n nu...

Fill in the blanks
If the mean of n numbers `x_1,x_2,x_3,….,x_n` is `barx` then the mean of `kx_1,kx_2,kx_3,…,kx_n` is______.

Promotional Banner

Topper's Solved these Questions

  • Compound Interest and Uniform rate of Increase or Decrease

    UNITED BOOK HOUSE|Exercise Exercise |29 Videos

  • GARDEN REACH BIHARI DAS GIRL'S

    UNITED BOOK HOUSE|Exercise EXERCISE|55 Videos

Similar Questions

Explore conceptually related problems

If the mean of observations x_i, x_2,……., x_n is barx , then the mean of (x_1 + a), (x_2 + a), ….., (x_n + a) is____

Fill in blanks If the mean of x_1,x_2,…,x_n is batx , then mean of ax_1,ax_2,…,ax_n will be _____. (a!=0) .

If the mean of the set of numbers x_1,x_2, x_3, ..., x_n is barx, then the mean of the numbers x_i+2i, 1 lt= i lt= n is

The geometric mean of numbers observations x_1, x_2, x_3,….,x_n is

If the mean of the numbers x_1, x_2, x_3,….x_n is overlinex , then the mean of the numbers x_i+2 , is , where 1 le i le n

If the arithmetic mean of the numbers x_1, x_2, x_3, ..., x_n is barx, then the arithmetic mean of the numbers ax_1 +b, ax_2 +b, ax_3 +b, ....,ax_n +b, where a, b are two constants, would be

Fill in the blanks: If the mean of X_1, X_2 ……. X_10 is barX , then (X_1 - barX) + (X_2 - barX) + …+ (X_(10) - barX) _______.

Let x_1,x_2,……,x_n be n observations, and let barx be their arithimetic mean and sigma^2 be their variance. Statement1: Variance of 2x_1, 2x_2,…..,2x_n is 4 alpha^2 Statement2: Arithmetic mean of 2x_1, 2x_2,…..,2x_n is 4 barx .

Fill in the blanks If the mean marks of mathematics of n, students is barx_1 and that of n_2 students is barx_2 , then the mean marks of total students is_____.

Fill in the blanks If (sumx_i)/n= barx then (sum(x_i-a))/n -_______.

UNITED BOOK HOUSE-DAULATPUR DALUICACHA BHARATI VIDYALAYA-EXERCISE
  1. Fill in the blanks If sin(theta-30^@)=1/2 then cos theta=.

    Text Solution

    |

  2. Fill in the blanks Number of surfaces of a solid hemisphere is.

    Text Solution

    |

  3. Fill in the blanks If the mean of n numbers x1,x2,x3,….,xn is barx t...

    Text Solution

    |

  4. In a business, the ratio of the capital of Rajus and Asif is 5:4 and i...

    Text Solution

    |

  5. To warn ships for underwater rocks, a lighthouse spreads a red colored...

    Text Solution

    |

  6. If two circles of radii 7 cm and 3 cm touch each other extermally, the...

    Text Solution

    |

  7. cos^2 20^@+cos^2 70^2 = 1.

    Text Solution

    |

  8. Write true or false: If the ratio of the total surface area of two cu...

    Text Solution

    |

  9. Define Assumed Mean Method Formula elaborately.

    Text Solution

    |

  10. In a partnership business, the ratio of the capital of Pritha and Rabe...

    Text Solution

    |

  11. What is the rate of simple interest per annum, when the interest of so...

    Text Solution

    |

  12. Calculate the compound ratio of a:bc.b:ca and c:ab.

    Text Solution

    |

  13. If 2x + 1/x = 2, then find the value of (x)/(2x^2+x+1).

    Text Solution

    |

  14. PQ and AB are two equal chords of a circle with centre O, If anglePOQ=...

    Text Solution

    |

  15. AB is the diameter of a semicircle with radius 4 cm in length and angl...

    Text Solution

    |

  16. ABCD is a cyclic trapezium having AD||BC. If angleABC = 70^@ then angl...

    Text Solution

    |

  17. If tan(theta+15^@)= sqrt3 then sin theta+ cos theta=?

    Text Solution

    |

  18. If the number of surface of a cuboid is x, the number of edges is y, t...

    Text Solution

    |

  19. If the numberical values of volume and curved surface area of a right ...

    Text Solution

    |

  20. In a frequency distribution table, mean = 54, sunfixi = 2200+50k and s...

    Text Solution

    |