Mathematics
Given below are the marks secured by 35 students in a test:
41, 32, 35, 21, 11, 47, 42, 00, 05, 18, 25, 24, 29, 38, 30, 04, 14, 24, 34, 44, 48, 33, 36, 38, 41, 46, 08, 34, 39, 11, 13, 27, 26, 43, 03.
Taking class intervals 0 - 10, 10 - 20, 20 - 30 …., construct frequency as well as cumulative frequency distribution table. Find the number of students obtaining below 20 marks.
Related Questions
Use the adjoining table to find:
(i) upper and lower limits of fifth class.
(ii) true class limits of the fifth class.
(iii) class boundaries of the third class.
(iv) class mark of the fourth class.
(v) width of sixth class.
Class Frequency 28 - 32 5 33 - 37 8 38 - 42 13 43 - 47 9 48 - 52 7 53 - 57 5 58 - 62 2 The marks of 200 students in a test were recorded as follows :
Marks % 10-19 20-29 30-39 40-49 50-59 60-69 70-79 80-89 No. of students 7 11 20 46 57 37 15 7 Draw the cumulative frequency table.
The marks out of 100 of 50 students in a test are given below:
5 35 6 35 18 36 12 36 85 32
20 36 22 38 24 50 22 39 74 31
25 54 25 64 25 70 28 66 58 25
29 72 31 82 31 84 31 82 37 21
32 84 32 92 35 95 34 92 35 5
(i) Taking a class interval of size 10, construct a frequency as well as cumulative frequency table for the given data.
(ii) Which class has the largest frequency?
(iii) How many students score less than 40 marks?
(iv) How many students score first division (60% or more) marks?
Construct the frequency distribution table from the following data :
Ages (in years) No. of children below 4 7 below 7 38 below 10 175 below 13 248 below 16 300 State the number of children in the age group 10 - 13.