Draw a 'more than' given for the data given below which gives the marks of $100$ students.
Marks $0 - 10$ $10 - 20$ $20 - 30$ $30 - 40$ $40 - 50$ $50 - 60$ $60 - 70$ $70 - 80$
Number of students $4$ $6$ $10$ $10$ $25$ $22$ $18$ $5$

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Solution

Marks Cumulative frequency
more than $0$ $100$
more than $10$ $96$
more than $20$ $90$
more than $30$ $80$
more than $40$ $70$
more than $50$ $45$
more than $60$ $23$
more than $70$ $5$
Plot points on the graph:
$(0, 100), (10, 96), (20, 90), (30, 80), (40, 70), (50, 45), (60, 23)$ and $(70, 5)$ to get the 'more that type' ogive as follows:
From frequency table, $N = 100 \Rightarrow N / 2 = 50$ .
At $y = 50$
Draw a horizontal line meeting the curve at $P, A P$
Draw a vertical line from point $P$ which is parallel to $y -$ axis and meets $O X$ at $M$ .
$O M = 47 u n i t s$
Median marks $= 47$

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Draw a 'more than' given for the data given below which gives the marks of 100 students.Marks0−1010−2020−3030−4040−5050−6060−7070−80Number of students4610102522185

Draw a 'more than' given for the data given below which gives the marks of $100$ students.
Marks $0 - 10$ $10 - 20$ $20 - 30$ $30 - 40$ $40 - 50$ $50 - 60$ $60 - 70$ $70 - 80$
Number of students $4$ $6$ $10$ $10$ $25$ $22$ $18$ $5$