From the ogive curve, answer the following question.

How many students secured marks between 50% and 70% ?

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Solution

Number of students who got marks less than 50% = 15

Number of students who got marks less than 70% = 35

Therefore number of students who got marks between 50% and 70% = 20

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Similar questions

Q. From the given less than type ogive curve, answer the following question.

How many students got marks less than 70%?

The given table shows the Marks obtained by students in Mathematics.

$\begin{matrix} Marks & No. of Students 0 - 10 & 3 10 - 20 & 7 20 - 30 & 12 30 - 40 & 15 40 - 50 & 20 50 - 60 & 9 60 - 70 & 8 70 - 80 & 16 80 - 90 & 14 90 - 100 & 6 \end{matrix}$

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.

$\begin{matrix} Marks & No. of Students 0 - 10 & 3 10 - 20 & 7 20 - 30 & 12 30 - 40 & 15 40 - 50 & 20 50 - 60 & 9 60 - 70 & 8 70 - 80 & 16 80 - 90 & 14 90 - 100 & 6 \end{matrix}$

Using the table determine the Lower Quartile by drawing an ogive curve.

Q. The following table gives

50

students marks.

Marks	0-10	10-20	20-30	30-40	40-50
Number of students	7	10	15	8	10

Draw the less than cumulative frequency curve(Ogive curve)

By using data in example (6), and taking classes 30-40, 40-50... prepare equal to or more than type cumulative frequency table and answer the following questions based on it.

(i) How many students have scored marks 70 or more than 70 ?

(ii) How many students have scored marks 30 or more than 30 ?

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From the ogive curve, answer the following question. How many students secured marks between 50% and 70% ? ___

Number of students who got marks less than 50% = 15 Number of students who got marks less than 70% = 35 Therefore number of students who got marks between 50% and 70% = 20

From the ogive curve, answer the following question.

How many students secured marks between 50% and 70% ?

___

Number of students who got marks less than 50% = 15

Number of students who got marks less than 70% = 35

Therefore number of students who got marks between 50% and 70% = 20