Question

Q1. Following table is showing the distribution of marks of students: Read the data carefully and answer the questions given below. Marks (Class-intervals) 30-40 40-50 50-60 60-70 Number of students 12 13 4 15 A)What is the lower limit of the class 50-60? B)What is the upper limit of the class 70-80 C)Calculate the class- mark of the second class interval (40-50) D)What is the class-size? E)How many students are below 60 marks?

Answer 1

Answer:

A) 50

B) 80

D) 10

E) 39

C)13