Question

Find the number of students securing marks between 70 and 100
a) 2
b) 4
c) 6
d) 8​

Answer 1

Answer:

6 is the answer

Step-by-step explanation:

Frequency density = Frequency in the class/Length of the class 30 = interval 0.2 = Frequency in the class/100 - 70 or Frequency in the class = 0.2 × 3 = 6