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

Statistics question

2022 · 25 Jul · Shift 2 · Q35
Guest · try one question or challengeGuest · try one question or challenge
  1. PYQ Library
  2. /JEE Main
  3. /Mathematics
  4. /Statistics
  5. /2022 · 25 Jul · Shift 2 · Q35

Statistics question

2022 · 25 Jul · Shift 2 · Q35

JEE MainMathematicsStatisticsMCQ+4 / −1
If the mean deviation about median for the numbers 3, 5, 7, 2k, 12, 16, 21, 24, arranged in the ascending order, is 6 then the median is :
  1. A
    11.5
  2. B
    10.5
  3. C
    12
  4. D
    11
PreviousNext

More from Statistics

  • If the mean deviation about the mean of the numbers 1, 2, 3, .........., n, where n is odd, is n5(n+1)​, then n is equal to ​.2022 · Numerical
  • The mean and standard deviation of 40 observations are 30 and 5 respectively. It was noticed that two of these observations 12 and 10 were wrongly recorded. If σ is the standard deviation of the data after omitting the two wrong…2022 · Numerical
  • The mean of the numbers a, b, 8, 5, 10 is 6 and their variance is 6.8. If M is the mean deviation of the numbers about the mean, then 25 M is equal to :2022 · MCQ
  • The mean and standard deviation of 50 observations are 15 and 2 respectively. It was found that one incorrect observation was taken such that the sum of correct and incorrect observations is 70. If the correct mean is 16, then the correct…2022 · MCQ
  • The mean and variance of 10 observations were calculated as 15 and 15 respectively by a student who took by mistake 25 instead of 15 for one observation. Then, the correct standard deviation is ​.2022 · Numerical
  • The mean and variance of the data 4, 5, 6, 6, 7, 8, x, y, where x < y, are 6 and 49​ respectively. Then x4+y2 is equal to :2022 · MCQ
  • Let x1​,x2​,x3​,…,x20​ be in geometric progression with x1​=3 and the common ratio 21​. A new data is constructed replacing each xi​ by (xi​−i)2. If xˉ is the mean of new…2022 · Numerical
  • The mean and standard deviation of 15 observations are found to be 8 and 3 respectively. On rechecking it was found that, in the observations, 20 was misread as 5. Then, the correct variance is equal to ​.2022 · Numerical