Question : Directions: Study the histogram of the marks (in mathematics) distribution of 50 students in class IX and answer the following question:
The number of students who have secured marks less than 60 is:
Option 1: 12
Option 2: 15
Option 3: 33
Option 4: 7
Correct Answer: 33
Solution :
The number of students who have scored in the interval 0 - 20 = 7
The number of students who have scored in the interval 20 - 40 = 8
The number of students who have scored in the interval 40 - 60 = 18
The students who score less than 60 marks = 7 + 8 + 18 = 33
Hence, the correct answer is 33.
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