The given table shows the Marks obtained by students in Mathematics.
MarksNo. of Students0−10310−20720−301230−401540−502050−60960−70870−801680−901490−1006
Using the table determine the Number of students who got above 74 % by drawing an ogive curve.
The given table shows the Marks obtained by students in Mathematics.
MarksNo. of Students0−10310−20720−301230−401540−502050−60960−70870−801680−901490−1006
Using the table determine the Number of students who got above 74 % by drawing an ogive curve.
The correct option is C 30
MarksNo. of StudentsCumulative FrequencyPoints to be plotted0−1033(10,3)10−20710(20,10)20−301222(30,22)30−401537(40,37)40−502057(50,57)50−60966(60,66)60−70874(70,74)70−801690(80,90)80−9014104(90,104)90−1006110(100,110)
To find the number of students scoring above 74% , we need to identify the number of students who have scored 74% and below
Joining the Point 74 on the X - axis with the ogive by drawing a perpendicular from it gives the Y- coordinate as 80.
∴ 80 students scored 74% and below.
The number of students who scored above 74% = Total number of students - Students scoring 74% and below.
= 110 - 80 = 30 Students
30
MarksNo. of StudentsCumulative FrequencyPoints to be plotted0−1033(10,3)10−20710(20,10)20−301222(30,22)30−401537(40,37)40−502057(50,57)50−60966(60,66)60−70874(70,74)70−801690(80,90)80−9014104(90,104)90−1006110(100,110)
To find the number of students scoring above 74% , we need to identify the number of students who have scored 74% and below
Joining the Point 74 on the X - axis with the ogive by drawing a perpendicular from it gives the Y- coordinate as 80.
∴ 80 students scored 74% and below.
The number of students who scored above 74% = Total number of students - Students scoring 74% and below.
= 110 - 80 = 30 Students
