Find the mean by using assumed mean method from the following frequency distribution of marks at a test in statistics :
Marks ( x ) : 5 10 15 20 25 30 35 40 45 50
No. of students ( f ) : 15 50 80 76 72 45 39 9 8 6
Answers
Answered by
0
Answer:
20 is the mean marks
add no of students
divide by terms
Similar questions