Question

.. Find a proper manter o carica leading to the following data. 12 15 19 25 36. 38 96 08 89 24 39 37 32 16 4B08 14 15 25 36 10 14 05 06 26 08 34 14 1 18 11 1900 32 36 38 37 12 14 12 16.26 31 30 50 90 18 115​

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Class 9

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>>Collection and Presentation of Data

>>The following are the marks (out of 100)

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The following are the marks (out of 100) of 60 students in mathematics.16, 13, 5, 80, 86, 7, 51, 48, 24, 56, 70, 19, 61, 17, 16, 36, 34, 42, 34, 35, 72, 55, 75,31, 52, 28,72, 97, 74, 45, 62, 68, 86, 35, 85, 36, 81, 75, 55, 26, 95, 31, 7, 78, 92, 62,52, 56, 15, 63,25, 36, 54, 44, 47, 27, 72, 17, 4, 30. Construct a grouped frequency distribution table with width 10 of each class starting from 0 - 9.

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Answer:-

Arranging the following data in ascending order:

4, 5, 7, 7, 13, 15, 16, 16, 17, 17, 19, 24, 25, 26, 27, 28, 30, 31, 34, 34, 35, 35, 36, 36, 36, 42, 44, 45, 47, 48,

51, 52, 52, 54, 55, 55, 56, 56, 61, 62, 62, 63,

68, 70, 72, 72, 72, 74, 75, 75, 78, 80,, 81, 85, 86, 86, 92, 95, 97.

Marks of

60 students

(class Interval) Tally Marks Frequency

0-9 ∣∣∣∣ 4

10-19 7

20-29 5

30-39 10

40-49 5

50-59 8

60-69 5

70-79 8

80-89 5

90-99 3

Total frequency = 60