Mathematics [3 marks sum]

During the medical check-up of 35 students of a class, their heights were recorded as follows:

Height (in cm)	No. of students
Less than 38	0
Less than 40	3
Less than 42	5
Less than 44	9
Less than 46	14
Less than 48	28
Less than 50	32
Less than 52	35

Make a less than cumulative frequency table for the given frequency distribution.

I.Q.	60-70	70-80	80-90	90-100	100-110	110-120	120-130
Frequency	2	5	12	31	39	10	4

Construct the more than cumulative frequency table for the given data :

Marks	0 - 10	10 - 20	20 - 30	30 - 40	40 - 50	50 - 60	60 - 70	70 - 80
Frequency	3	8	12	14	10	6	5	2

Draw the histogram for the given data :

Marks	0 - 20	20 - 40	40 - 60	60 - 100
Number of students	10	15	20	25

Draw a histogram to represent the following frequency distribution, find the adjusted frequency for the class 25 – 45.

Class-interval	5 - 10	10 - 15	15 - 25	25 - 45	45 - 75
Frequency	6	12	10	8	15

A random survey of the number of children of various age groups playing in a park was found as follows:

Age (in years)	No. of Children
1 - 2	5
2 - 3	3
3 - 5	6
5 - 7	12
7 - 10	9
10 - 15	10
15 - 17	4

Draw a histogram to represent the above data.

Draw histogram for the following data:

Class-interval	0 - 10	10 - 20	20 - 30	30 - 40	40 - 50	50 - 60
Frequency	12	20	26	18	10	6