Question

1.Find the median of the following data, which gives the marks, out of 50,
obtained by 100 students in a test :
Mark
obtained
20 29 28 33 42 38 43 25
Number
of
students
6 28 24 15 2 4 1 20

Answer 1

Step-by-step explanation:

obtained=20,25,28,29,33,38,42,43

no. of student=1,2,4,6,15,20,24,28

20×1,25×2,28×4,29×6,33×15,38×20,42×24,43×28

20+50+112+174+495+760+1008+1204

3823/total sum of student

3823/100

38.23