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1. A frequency distribution is defined as
A. distribution with tally marks
B. a rough arrangement of data
C. tabular arrangement of data by classes together with the corresponding class frequencies
D. arrangement of frequencies with class size
2. The class mark of class interval 60 - 70 will be
A. 75
B. 65
C. 70
D. 60
4. Number of runs scored by a cricket player in 25 innings are as follows: 26, 35, 94, 48, 82, 105, 53, 0, 39, 42, 71, 0, 64, 15, 34, 67, 0, 42, 124, 84, 54, 48, 139, 64, 47. The number of centuries scored by him is
A. 1
B. 3
C. 5
D. 0
6. A curious 12th class student wants to know and collect the data regarding the percentage of students who got grade A1 in Mathematics during the last 10 years in Board examinations. This collected data is known as
A. raw data
B. a primary data
C. frequency data
D. a secondary data
10. In the following data, the number of class intervals, (by inclusive method), and taking 4 as the magnitude of class intervals will be 31, 23, 19, 29, 22, 20, 16, 10, 13, 34 38, 33, 28, 21, 15, 18, 36, 24, 18, 15 12, 30, 27, 23, 20, 17, 14, 32, 26, 25 18, 29, 24, 19, 16, 11, 22, 15, 17, 10
A. 10
B. 7
C. 8
D. 9
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