InterviewSolution
Saved Bookmarks
| 1. |
If for some x∈R, the frequrency distribution of the marks obtained by 20 students in a test is : Marks 2 3 5 7 Frequency (x+1)2 2x−5 x2−3x x then the mean of the marks is : |
||||||||||
|
Answer» If for some x∈R, the frequrency distribution of the marks obtained by 20 students in a test is :
then the mean of the marks is : |
|||||||||||