Use app×
Join Bloom Tuition
One on One Online Tuition
JEE MAIN 2025 Foundation Course
NEET 2025 Foundation Course
CLASS 12 FOUNDATION COURSE
CLASS 10 FOUNDATION COURSE
CLASS 9 FOUNDATION COURSE
CLASS 8 FOUNDATION COURSE
0 votes
3.3k views
in Statistics by (47.3k points)
closed by

The class marks of a frequency distribution are given as follows:

15, 20, 25, …

The class corresponding to the class mark 20 is:

(A) 12.5 – 17.5

(B) 17.5 – 22.5

(C) 18.5 – 21.5

(D) 19.5 – 20.5

1 Answer

+1 vote
by (49.8k points)
selected by
 
Best answer

(B) 17.5 – 22.5

Explanation:

According to the question,

Difference between class marks = 5

The classes for these class marks are as follows:

2.5 – 7.5

7.5 – 12.5

12.5 – 17.5

17.5 – 22.5

22.5 – 27.5

Hence, the class corresponding to class mark 20 = 17.5 – 22.5

Hence, option (B) is the correct answer.

Welcome to Sarthaks eConnect: A unique platform where students can interact with teachers/experts/students to get solutions to their queries. Students (upto class 10+2) preparing for All Government Exams, CBSE Board Exam, ICSE Board Exam, State Board Exam, JEE (Mains+Advance) and NEET can ask questions from any subject and get quick answers by subject teachers/ experts/mentors/students.

Categories

...