Make a frequency table from the following:
Marks obtained
Number of students
More than $60$
$0$
More than $50$
$16$
More than $40$
$40$
More than $30$
$75$
More than $20$
$85$
More than $10$
$90$
More than $0$
$100$

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Solution

Step 1: Organizing the frequency distribution table:
Class interval
Frequency
$0 - 10$
$10$
$10 - 20$
$3$
$20 - 30$
$12$
$30 - 40$
$35$
$40 - 50$
$24$
$50 - 60$
$16$
Therefore, the frequency distribution table is formed.

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Make a frequency table from the following:

Make a frequency table from the following:
$\begin{matrix} Marks obtained & Number of students More than 60 & 0 More than 50 & 16 More than 40 & 40 More than 30 & 75 More than 20 & 87 More than 10 & 92 More than 0 & 100 \end{matrix}$

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. Look at the cumulative frequency distribution table given below:

Monthly income	Number of families
More that Rs 10000	100
More that Rs 14000	85
More that Rs 18000	69
More that Rs 20000	50
More that Rs 25000	37
More that Rs 30000	15

Number of families having income range Rs 20000 to Rs 25000 is
(a) 19
(b) 16
(c) 13
(d) 22

Make a frequency table from the follwing

Marks obtained	No. of students
More than 60	0
More than 50	16
More than 40	40
More than 30	75
More than 20	87
More than 10	92
More than 0	100

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Marks obtained	Number of students
More than $60$	$0$
More than $50$	$16$
More than $40$	$40$
More than $30$	$75$
More than $20$	$85$
More than $10$	$90$
More than $0$	$100$

Class interval	Frequency
$0 - 10$	$10$
$10 - 20$	$3$
$20 - 30$	$12$
$30 - 40$	$35$
$40 - 50$	$24$
$50 - 60$	$16$

Make a frequency table from the following:Marks obtained Number of students More than 600More than 5016More than 4040More than 3075More than 2085More than 1090More than 0100

Step 1: Organizing the frequency distribution table:Class interval Frequency 0-101010-20320-301230-403540-502450-6016Therefore, the frequency distribution table is formed.

Make a frequency table from the following:
Marks obtained
Number of students
More than $60$
$0$
More than $50$
$16$
More than $40$
$40$
More than $30$
$75$
More than $20$
$85$
More than $10$
$90$
More than $0$
$100$

Step 1: Organizing the frequency distribution table:
Class interval
Frequency
$0 - 10$
$10$
$10 - 20$
$3$
$20 - 30$
$12$
$30 - 40$
$35$
$40 - 50$
$24$
$50 - 60$
$16$
Therefore, the frequency distribution table is formed.