Home
Class 11
MATHS
a,b,c and d are 4 observations . Their m...

a,b,c and d are 4 observations . Their mean and median is zero then b = -c.

Text Solution

Verified by Experts

The correct Answer is:
True Statement
Promotional Banner

Topper's Solved these Questions

  • OBJECTIVE SECTION AS PER NEW PAPER SCHEME

    KUMAR PRAKASHAN|Exercise Probability (Fill in the Blanks)|24 Videos

  • OBJECTIVE SECTION AS PER NEW PAPER SCHEME

    KUMAR PRAKASHAN|Exercise Probability (True/False Statement)|10 Videos

  • OBJECTIVE SECTION AS PER NEW PAPER SCHEME

    KUMAR PRAKASHAN|Exercise Statistics (Fill in the Blanks)|18 Videos

  • MATHEMATICAL REASONING

    KUMAR PRAKASHAN|Exercise QUESTION OF MODULE (Knowledge Test:)|2 Videos

  • PERMUTATIONS AND COMBINATIONS

    KUMAR PRAKASHAN|Exercise PRACTICE WORK |40 Videos

Similar Questions

Explore conceptually related problems

Let a,b,c,d,e be the observations with mean m and standard deviation S. The standard deviation of the observation a + k , b+ k , c+ k, d+k, e+k is ……

If a,b,c and d are four real numbers of the same sign, then the value of (a)/(b)+(b)/(c )+(c )/(d)+(d)/(a) lies in the interval

Given a+b+c+d=0 , which of the following statements are correct (a) a,b,c and d must each be null vector , (b) The magnitude of (a+c) equals the magnitude of (b+d), (c ) The magnitude of a can never be greater than the sum of the magnitudes of b ,c and d, (d) b+c must lie in the plane of and d if a and d are not collinear , and in the line of a and d , if they are collimear ?

If a,b and c are three non-zero vectors such that no two of these are collinear. If the vector a+2b is collinear with c and b+3c is collinear with a( lamda being some non-zero scalar), then a+2b+6c is equal to

A,B,C and D have position vectors a,b,c and d, respectively, such that a-b=2(d-c). Then,

If a,b,c,d,e,f are in A.P. then d-b= ……

If in a right angled triangle, a\ a n d\ b are the lengths of sides and c is the length of hypotenuse and c-b!=1,\ c+b!=1 , then show that (log)_("c"+"b")"a"+(log)_("c"-"b")"a"=2(log)_("c"+"b")adot(log)_("c"-"b")adot

Recognise a,b,c, and d.

KUMAR PRAKASHAN-OBJECTIVE SECTION AS PER NEW PAPER SCHEME -Statistics (True/False Statement)
  1. Marks obtained by 10 students in exam of 70 Marks are as follows. 53,4...

    Text Solution

    |

  2. Numbers of observation of the data is n (where n is even) then median ...

    Text Solution

    |

  3. Median of nine observations is 20.45 . If 2 is added in last four obse...

    Text Solution

    |

  4. Let a,b,c,d,e be the observations with mean m and standard deviation S...

    Text Solution

    |

  5. Mean is the measure of dispersion.

    Text Solution

    |

  6. Co-efficient of variance of one data is 45% and mean is 12 then S.D. i...

    Text Solution

    |

  7. x1,x2,x3,….xn then (x1-barx)+(x2-barx)+(xn-barx)=0.

    Text Solution

    |

  8. For an data if n = 10, sumx1=40,sumxi^2=250 then standard deviation s ...

    Text Solution

    |

  9. variance of 6 observation is 250 then sum(xi-barx)^2=1200.

    Text Solution

    |

  10. a,b,c and d are 4 observations . Their mean and median is zero then b ...

    Text Solution

    |

  11. Marks obtained by 10 students in exam of 70 Marks are as follows. 53,4...

    Text Solution

    |

  12. Numbers of observation of the data is n (where n is even) then median ...

    Text Solution

    |

  13. Median of nine observations is 20.45 . If 2 is added in last four obse...

    Text Solution

    |

  14. Let a,b,c,d,e be the observations with mean m and standard deviation S...

    Text Solution

    |

  15. Mean is the measure of dispersion.

    Text Solution

    |

  16. Co-efficient of variance of one data is 45% and mean is 12 then S.D. i...

    Text Solution

    |

  17. x1,x2,x3,….xn then (x1-barx)+(x2-barx)+(xn-barx)=0.

    Text Solution

    |

  18. For an data if n = 10, sumx1=40,sumxi^2=250 then standard deviation s ...

    Text Solution

    |

  19. variance of 6 observation is 250 then sum(xi-barx)^2=1200.

    Text Solution

    |

  20. a,b,c and d are 4 observations . Their mean and median is zero then b ...

    Text Solution

    |