CBSE Board Practice

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CBSE Grade VII - Data Handling

Question 1

1.	Find the mean of all prime numbers between 30 and 60.
	313 7 309 7 133 3 223 5 311 7

Question 2

2.	Heights of 12 students (in cm) are given below. Find the mode height. 141 140 134 128 136 129 169 146 139 151 161 128
	128 cm 127 cm 129 cm 130 cm 126 cm

Question 3

3.	Ages of 14 students (in years) are given below. Find the median age. 14 15 15 12 15 13 14 11 12 15 15 15 12 13
	16 years 14 years 12 years 15 years 13 years

Question 4

4.	Given below is the column-graph showing heights of some mountain peaks. Find the mountain that has 8217 m height.
	Kilimanjaro Annapurna Appalachian Kanchenjunga Mount Everest

Question 5

5.	Find the sum of frequencies for the given table Value 21 25 26 36 49 64 65 73 75 87 Frequency 1 1 1 1 1 1 1 1 1 1
	9 13 11 10 7

Question 6

6.	Students of a certain locality use different modes of travel to school as given below. Find the mode of travel that has 330 students.
	School Van By Foot RTC Bus Car Scooter

Question 7

7.	Two unbiased coins are tossed simultaneously. Find the probability of getting at least one head.
	3 4 1 2 4 5 1 4 1

Question 8

8.	Find the mean of first 7 multiples of 12.
	50 48 49 47 45

Question 9

9.	On a certain day, the temperature in a city was recorded as shown below. Find the time that has maximum temperature.
	3 p.m. 5 a.m. 1 p.m. 11 a.m. 9 a.m.

Question 10

10.	Find the median of first 5 whole numbers.
	-1 4 1 2 3

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