Question

Case study 3.
100m RACE a stopwatch was used to find the time that it took a group of students to run 100m
0-20
20-40
40-60
60-80
80-100
Time
(in sec)
No. of
students
8
10
13
6
3
(a) Estimate the mean time taken by a student to finish the race.
(0)54
(11)63
(11) 43
(iv)50​

Answer 1

Answer:

a. 54 second

hope that is right