The histogram shows the marks scored by 40 students in a test with maximum 30 marks.
What is the ratio of the number of students who scored marks in the class intervals 10 - 15 and 15 - 20 taken together to that of the students in the class intervals 5 - 10 and 25 - 30 taken together?
Answer & explanation
Correct answer: option 1
Number of students scored marks in the class intervals 10 - 15 and 15 - 20 : number of students scored marks in the class intervals 5 - 10 and 25 - 30
= ( 7 + 8 ) : ( 8 + 5 )
= 15 : 13