Question

Following are the marks obtained by 40 students in Science. Arrange these marks in a table

using tally marks.

45,56,56,56,34,80,78,90,90,90,87,87,78,56,56,56,56,45,45,45,80,78,90,56,76,45,76,

56,76,50,80,90,50,90,50,50, 45,56,76,50.​

Answer 1

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