Home
Class 12
MATHS
If a variable takes the values 0, 1, 2,…...

If a variable takes the values 0, 1, 2,…,n with frequencies proporiotnal to binomial coefficient `n_(C_(0)), n_(C_(1)), n_(C_(2)),….n_(C_(n))`, then mean of distribution is

Promotional Banner

Topper's Solved these Questions

  • STATISTICS

    AAKASH SERIES|Exercise EXERCISE-5.3|5 Videos

  • STATISTICS

    AAKASH SERIES|Exercise EXERCISE-5.1|17 Videos

  • SETS AND RELATIONS

    AAKASH SERIES|Exercise PRACTICE EXERCISE|26 Videos

  • STRAIGHT LINES (3D)

    AAKASH SERIES|Exercise PRACTICE EXERCISE|28 Videos

Similar Questions

Explore conceptually related problems

If a variable x takes values 0,1,2,3,…,n with frequencies proportional to binomial coefficients n_(C_(0)), n_(C_(1)), n_(C_(2)),….,n_(C_(n)) then show that the mean of x is (n)/(2)

If a variable takes values 0, 1, 2,…,n with frequencies q^(n), (n)/(1)q^(n-1)p, (n(n-1))/(1.2)q^(n-2)p^(2),…,p^(n) where p+q = 1, then the mean is

The A.M. of the series .^(n)C_(0), .^(n)C_(1), .^(n)C_(2),….,.^(n)C_(n) is

C_0-(C_1)/(2)+(C_2)/(3)-…...+(-1)^n (C_n)/(n+1)=

2.(C_2)/(C_1)+3.(C_3)/(C_2)+…...+n. (C_n)/(C_(n-1))=

If ""^(n+1)C_(3)=4(""^(n)C_(2)) , then n is equal to

AAKASH SERIES-STATISTICS -EXERCISE-5.2
  1. Find the variance for the discrete data given below . (i) 6,7,10,12,...

    Text Solution

    |

  2. Find the variance for the discrete data given below. 350, 361, 370, ...

    Text Solution

    |

  3. Find the variance and standard deviation of the following data 5,12 ,...

    Text Solution

    |

  4. If standard deviation of 1, 2, 3, 4, ...,10 is sigma then, show that s...

    Text Solution

    |

  5. If n=10 , sum(i=1)^(10) x(i)=60 and sum(i=1)^(10) x(i)^(2)=1000 then f...

    Text Solution

    |

  6. Calculate the variance and standard deviation of the following continu...

    Text Solution

    |

  7. Calculate the variance and standard deviation of the following continu...

    Text Solution

    |

  8. If the s.d of-5, -4,-3, -2,-1, 0, 1, 2, 3, 4, 5 is sqrt(10) then find ...

    Text Solution

    |

  9. If a variable takes the values 0, 1, 2,…,n with frequencies proporiotn...

    Text Solution

    |

  10. Suppose a population A has 100 observations 101, 102, ...., 200, and a...

    Text Solution

    |

  11. In a series of 2n observations, half of them equals to a and remaining...

    Text Solution

    |

  12. The standard deviations of two sets containing 10 and 20 members are 2...

    Text Solution

    |

  13. If sum(i=1)^(18)(x(i)-8)=9 and sum(i=1)^(18)(x(i)-8)^(2)=45 then find ...

    Text Solution

    |

  14. The mean and standard deviation of 20 items is found to be 10 and 2 re...

    Text Solution

    |

  15. For two data sets each of size 5 the variances are given by 4 and 5 an...

    Text Solution

    |

  16. The means and variance of n observation x1, x2, x3,....xn are 5 and 0 ...

    Text Solution

    |

  17. The standard deviation of n observation x1 , x2, x3 .....,xn is 2. If...

    Text Solution

    |

  18. The mean and standard deviation of 100 observations were calculated as...

    Text Solution

    |