Question

Marks obtained by 200 students in an examination are given below:
Marks 0-10 10-20 20-30 30-40 40-50 50-60 60-70 70-80 80-90 90-100
Number of students
5 10 14 21 25 34 36
27 16 12
Draw an ogive for the given distribution taking 2 cm = 10 marks on one axis and 2 cm =20
students on other axis.
From the graph, find :
(i) the median;
(ii) the upper-quartile;
(ii) number of students scoring more than 65 marks;
(iv) if 10 students qualify for merit-scholarship, find the minimum marks required to qualify
2009

Answer 1

Answer:

Step-by-step explanation:

2 = 10 2 = 20 . , () . () 40. () 85 , .