From the given table , the number of students who got 60 or more than 60 marks , is ______ .
Marks (class - interval) No.of students
30-40 12
40-50 13
50-60 04
60-70 15
70-80 06

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Solution

The correct option is A 21
Total Number of Students $= 12 + 13 + 4 + 15 + 6 = 50$
Number of Students who got $60$ or more than $60$ Marks $=$ Number of Students lying in $60 - 70$ and $70 - 80$ Interval $= 15 + 6 = 21$
$∴ Answer = 21$

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Similar questions

In a class $A$ of $25$ students, $20$ passed with $60 %$ or more marks; in another class $B$ , $30$ students, $24$ passed with $60 %$ or more marks. In which class was a greater fraction of students getting with $60 %$ or more marks?

The data is given for 62 students in a certain class regarding their mathematics marks out of 100. Take the classes 0-10, 10-20.. and prepare frequency distribution table and cumulative frequency table more than or equal to type.

55, 60, 81, 90, 45, 65, 45, 52, 30, 85, 20, 10, 75, 95, 09, 20, 25, 39, 45, 50, 78, 70, 46, 64, 42, 58, 31, 82, 27, 11, 78, 97, 07, 22, 2 36, 35, 40, 75, 80, 47, 69, 48, 59, 32, 83, 23, 17, 77, 45, 05, 23, 37, 38, 35, 25, 46, 57, 68, 45, 47, 49.

From the prepared table, answer the following questions :

(i) How many students obtained marks 40 or above 40 ?

(ii) How many students obtained marks 90 or above 90 ?

(iii) How many students obtained marks 60 or above 60 ?

(iv) What is the cumulative frequency of equal to or more than type of the class 0-10?

Q. Out of 100 students sitting in an examination, 40 students got more than 60 marks out of 100. So, percent of students got more than 60 marks.

250 students of class X of a school appeared in a test of 100 marks and the data about the marks secured is as below.
$\begin{matrix} Marks secured & 0 - 20 & 21 - 40 & 41 - 60 & 61 - 80 & 81 - 100 Number of students & 20 & 35 & 65 & 60 & 70 \end{matrix}$

Find the probability of selecting at random, a student who scored

(i) not more than 40
(ii) more than 60
(iii) more than 80 [ 2 MARKS ]

Q. The following table shows the marks obtained by students of a class in a math test (out of 10 marks).

Maximum number of students got marks.

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Marks (class - interval)	No.of students
30-40	12
40-50	13
50-60	04
60-70	15
70-80	06

From the given table , the number of students who got 60 or more than 60 marks , is ______ .Marks (class - interval)No.of students30-401240-501350-600460-701570-8006

The correct option is A 21Total Number of Students =12+13+4+15+6=50Number of Students who got 60 or more than 60 Marks = Number of Students lying in 60−70 and 70−80 Interval =15+6=21∴Answer =21

From the given table , the number of students who got 60 or more than 60 marks , is ______ .
Marks (class - interval) No.of students
30-40 12
40-50 13
50-60 04
60-70 15
70-80 06

The correct option is A 21
Total Number of Students $= 12 + 13 + 4 + 15 + 6 = 50$
Number of Students who got $60$ or more than $60$ Marks $=$ Number of Students lying in $60 - 70$ and $70 - 80$ Interval $= 15 + 6 = 21$
$∴ Answer = 21$