Mathematics
The class marks of a frequency distribution are 10, 15, 20, 25, …………… The class corresponding to the class mark 15 is :
12.5-17.5
10-20
10.25-17
14-16
Related Questions
The class-mark of the class 35-45 is :
35
45
40
42
In the class-intervals 1-10, 11-20, 21-30; the class 11-20 after adjustment is :
0.5-10.5
20.5-30.5
10.5-30.5
10.5-20.5
State, which of the following variables are continuous and which are discrete :
(a) number of children in your class.
(b) distance travelled by a car.
(c) sizes of shoes.
(d) time.
(e) number of patients in a hospital.
Given below are the marks obtained by 30 students in an examination :
08 17 33 41 47 23 20 34
09 18 42 14 30 19 29 11
36 48 40 24 22 02 16 21
15 32 47 44 33 01
Taking class intervals 1-10, 11-20, ……………, 41-50; make a frequency table for the above distribution.