Question

67, 69, 7A, 73, 70, 70, 71, 73, 74, 73, 75, by,
2. The marks obtained by 30 students of a class in a test out of 10 marks are as follows:
4,6,5, 1, 5, 4, 3, 6, 8, 10, 7, 1, 8, 5,4,9, 7, 10, 3, 2, 4, 5,3,6,7,8, 4, 10,3,9.
Make a frequency distribution table for the above data. Use the table to find :
(i) The number of students passed, if the minimum pass marks are 40%.
(ii) How many students failed ?
(iii) How many students secured the highest marks?
(iv) How many students secured more than 60% marks?​

Answer 1

Step-by-step explanation:

(i) 40% of 10 = 40/100 x 10 = 4

4,6,5,5,4,6,8,10,7,8,5,4,9,7,10,4,5,6,7,8,4,10,9

So 23 students passed

(ii) 30 - 23 = 7

So 7 students failed

(iii) 3 students secured the highest marks that is 10

(iv) 60% of 10 = 60/100 x 10 = 6

8,10,7,8,9,7,10,7,8,10,9

11 students scored more than 60%

Answer 2

Answer:

1) 4 marks

2) 7 students

3) 3 students

4) 11 students

Step-by-step explanation:

(i) 40% of 10 = 40/100 x 10 = 4

4,6,5,5,4,6,8,10,7,8,5,4,9,7,10,4,5,6,7,8,4,10,9

So 23 students passed

(ii) 30 - 23 = 7

So 7 students failed

(iii) 3 students secured the highest marks that is 10

(iv) 60% of 10 = 60/100 x 10 = 6

8,10,7,8,9,7,10,7,8,10,9

11 students scored more than 60%

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