If the upper boundary of a class is 30, class interval is 10, then lower boundary is
10
20
30
40
The mean of the first 10 natural numbers is
25
55
5.5
2.5
The mean of first 5 whole number is
2
3
0
The arithmetic mean of integers from -5 to 5 is
The mode of 10, 2, 8, 6, 7, 8, 9, 10, 10, 11, 10, is,
8
9
11
The mid value of the class 70-79 is
78
75.5
74
74.5
The greater than cumulative frequency of a class is 83 and that of next class is 72 then the frequency of the class is
12
60
80
The width of a rectangle in a histogram represents
mid values of the class
class- interval
frequency of the class
number of classes
Pie diagram contains
rectangles
sectors
squares
triangles
Range of the values 20,18,37,42, 3,12, 15,26 is
42
39
6