Question

30. Mean of a class of 35 students in a Mathematics class test was found to

be 15. A chance was given to improve marks of those students who score

less than 8 marks. Three students score 3, 5 & 6 marks respectively. A

remedial class was taken by the teacher & then test was taken again. The

three students score 7,10,12 marks respectively in improvement test. What

will be the new mean of the class. What values of the teacher are depicted

here.

Answer 1

the new Mean is 15.42857

Answer 2

Answer:

Step-by-step explanation: