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
1.4k views
in Statistics by (48.7k points)
closed by

There are 68 students of 9th standard from Model Highschool, Nandpur. They have scored following marks out of 80, in written exam of mathematics. 

70, 50, 60, 66, 45, 46, 38, 30, 40, 47, 56, 68, 

80, 79, 39, 43, 57, 61, 51, 32, 42, 43, 75, 43, 

36, 37, 61, 71, 32, 40, 45, 32, 36, 42, 43, 55, 

56, 62, 66, 72, 73, 78, 36, 46, 47, 52, 68, 78,

80, 49, 59, 69, 65, 35, 46, 56, 57, 60, 36, 37,

45, 42, 70, 37,45, 66, 56, 47

By taking classes 30 – 40, 40 – 50, …. prepare the less than type cumulative frequency table. Using the table, answer the following questions: 

i. How many students have scored marks less than 80? 

ii. How many students have scored marks less than 40? 

iii. How many students have scored marks less than 60?

1 Answer

+1 vote
by (49.4k points)
selected by
 
Best answer

Class

i. 66 students have scored marks less than 80. 

ii. 14 students have scored marks less than 40. 

iii. 45 students have scored marks less than 60.

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.

...