the mean marks of a class in mathematics test was 56 there were 44 pupils the teacher gave 5 marks to each student for assignment work how will the mean marks change
Answers
Answered by
7
Hey mate :-)
☆ Since we know if x is added to each terms then mean also increases to mean + x
☆Previous mean = 56
☆ If here 5 is added to mark of each student then new mean ,
=》 56 + 5
=》 61
:-)
Hope you get it my friend !!
♤Mark as BRAINIEST answer ♤
Answered by
8
Answer: 61
Step-by-step explanation:
Mean mark of 44 students = 56
So the total marks they obtained =44x56=2464
Total marks after they were given 5 marks each = 2464 + (44x5)
=2684
So mean =2684/44 = 61
————————————
Since all were given the same additional mark, we just need to add the number to the previous mean
So mean =56+5=61
Similar questions