Question

20.
X
Marks
No. of students
0 - 10
3
10 - 20
9
20 - 30
17
30 - 40
40 - 50
9
If the data is about 50 students, what is the
value of x ? which class has maximum number
of students ?
(a) 13, 20-30
(b) 11, 30-40
(c) 19, 30-40
(d) 12, 20 - 30​

Answer 1

Answer:

option b

Step-by-step explanation:

i cant understand

Answer 2

Answer:

(d) 12, 20 - 30

Step-by-step explanation:

3 + 9 + 17 + x + 9 =50 (Total number of students)

x = 50 - 38

x =12

The class that has maximum number of students = 20-30

So the option is (d) 12, 20 - 30