JEE Main 2023 Mathematics question
Let be the mean and be the standard deviation of the distribution : 0,1,2,3,4,5 : k+2,2k,-1,-1,+1,k-3 where = 62. If [x] denotes the greatest integer x, then is equal to -
Answer: (B)
Let be the mean and be the standard deviation of the distribution : 0,1,2,3,4,5 : k+2,2k,-1,-1,+1,k-3 where = 62. If [x] denotes the greatest integer x, then is equal to -