Important Questions > Class X > 2010 > Maths > Mathematics By Mr. Manoj Rajurkar

Sunday 05th May 2024

CBSE Guess > Papers > Important Questions > Class X > 2010 > Maths > Mathematics By Mr. Manoj Rajurkar

CBSE CLASS X

Q. 6. A survey regarding the heights ( in cm ) of 51 girls of class X of a school was conducted and the following data was obtained:

Height ( in cm )	Number of girls
Less than 140	4
Less than 145	11
Less than 150	29
Less than 155	40
Less than 160	46
Less than 165	51

Find the median height.

Q. 7. Following is the age distribution of a group of students. Draw the cumulative & frequency polygon, cumulative & frequency curve (less than type) and hence obtain the median value.

Age	Frequency
5 – 6	40
6 – 7	56
7 – 8	60
8 – 9	66
9 – 10	84
10 – 11	96
11 – 12	92
12 – 13	80
13 – 14	64
14 – 15	44
15 – 16	22
16 – 17	22

Q. 8. Find the median marks from the following data:-

Marks	00 and above	10 and above	20 and above	30 and above	40 and above	50 and above	60 and above	70 and above	80 and above	90 and above	100 and above
Number of Students	80	77	72	65	55	43	28	16	10	08	00

Q. 9. Find the mean, median and mode of the following data:

Classes	4 − 8	8 − 12	12 − 16	16 − 20	20 − 24	24 − 28	28 − 32	32 − 36	Total
No. of students	2	12	15	25	18	12	13	3	100

Q. 10. The following frequency distribution gives the monthly consumption of electricity 68 consumer of a locality. Find the median, mean and mode of the data and compare them.

Monthly Consumption of electricity	No. of Consumers
65 – 85	4
85 – 105	5
105 – 125	13
125 – 145	20
145 – 165	14
165 – 185	8
185 – 205	4

Paper By : Mr. Manoj Rajurkar
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Ph No. : 919425354446