Question

the marks obtained by 40 students in Science are given below. Arrange the marks in a table mark using tally marks. 4,2,3,4,3,2,1,4,2,3,5,2,8,9,3,8,9,1,4,5,3,2,3,2,4,4,5,8,8,9,9,1,1,3,4,5,8,2,2,4. please give the answer in solution and full answer please​

Answer 1

Answer:

Correct option is A)

In a mathematics test following matrix were obtained by 40 students of class VI.

Arrange these marks in table, tally marks

Marks Frequency Tally marks

1 2 ||

2 3 |||

3 3 |||

4 7 ||||

5 6 ||||

6 7 ||||

7 5 ||||

8 4 ||||

9 3 ||||

Total 40

No. of students obtained marks equal to or more than 7. (7,8,9 marks)

is =5+4+3

=12.