Doubts
Sign in
12thPass logo
New chatPYQ LibraryDoubtsRank report
Sign in to see Recents
Sign in to save progress →
Doubts
Sign in

Statistics question

2015 · Shift 0 · Q24
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Mathematics
  4. /Statistics
  5. /2015 · Shift 0 · Q24

Statistics question

2015 · Shift 0 · Q24

JEE MainMathematicsStatisticsMCQ+4 / −1
The mean of the data set comprising of 16 observations is 16. If one of the observation valued 16 is deleted and three new observations valued 3, 4 and 5 are added to the data, then the mean of the resultant data, is :
  1. A
    15.8
  2. B
    14.0
  3. C
    16.8
  4. D
    16.0
PreviousNext

More from Statistics

  • The variance of first 50 even natural numbers is2014 · MCQ
  • All the students of a class performed poorly in Mathematics. The teacher decided to give grace marks of 10 to each of the students. Which of the following statistical measures will not change even after the grace marks were given?2013 · MCQ
  • Let x1, x2,........., xn be n observations, and let x be their arithematic mean and σ2 be their variance. Statement 1 : Variance of 2x1, 2x2,......., 2xn is 4 σ2. Statement 2 : : Arithmetic mean of 2x1,…2012 · MCQ
  • If the mean deviation about the median of the numbers a, 2a,........., 50a is 50, then |a| equals2011 · MCQ
  • For two data sets, each of size 5, the variances are given to be 4 and 5 and the corresponding means are given to be 2 and 4, respectively. The variance of the combined data set is2010 · MCQ
  • Statement - 1 : The variance of first n even natural numbers is 4n2−1​ Statement - 2 : The sum of first n natural numbers is 2n(n+1)​ and the sum of squares of first n natural numbers is 6n(n+1)(2n+1)​…2009 · MCQ
  • If the mean deviation of number 1, 1 + d, 1 + 2d,........, 1 + 100d from their mean is 255, then the d is equal to2009 · MCQ
  • The mean of the numbers a, b, 8, 5, 10 is 6 and the variance is 6.80. Then which one of the following gives possible values of a and b?2008 · MCQ