Find the proportion of the student obtaining 60 or more marks Marks: 0...
Proportion of Students Obtaining 60 or More Marks
Step 1: Calculate the Total Number of Students
To find the proportion of students obtaining 60 or more marks, we first need to calculate the total number of students. We add the number of students in each marks range:
Total number of students = 30 + 50 + 80 + 40 = 200
Step 2: Calculate the Number of Students Obtaining 60 or More Marks
Next, we need to calculate the number of students who obtained 60 or more marks. We add the number of students who obtained marks in the 50-75 range and the number of students who obtained marks in the 75-100 range:
Number of students obtaining 60 or more marks = 80 + 40 = 120
Step 3: Calculate the Proportion of Students Obtaining 60 or More Marks
Finally, we divide the number of students obtaining 60 or more marks by the total number of students and multiply the result by 100 to get the proportion as a percentage:
Proportion of students obtaining 60 or more marks = (120/200) x 100% = 60%
Therefore, 60% of the students obtained 60 or more marks.