Question

Give the steps of calculating the mode graphically. Also, compute graphically the modal value of
given data.
marks
0-10
10-20
20-30 30-40
40-50
No. of students
2.
5
7
2​

Answer 1

Answer:

Answer is 92.

Explanation:

modal formula=l+f1-fo÷2f1-fo-f2×h

so,l=20 ; f1=7; fo=5; f2=2; h=10.

=20+7-5÷14-5-2×10

=20+2÷14-7×10

=20+2÷7×10

=20+72

=92