The mean of first 5 whole number is
2
2.5
3
0
If the upper boundary of a class is 30, class interval is 10, then lower boundary is
10
20
30
40
The mid value of class 1-10 is
5
5.5
6
The median of 2, 7, 4,8, 9, 1, is
4
7
The arithmetic mean of integers from -5 to 5 is
25
The class interval of 1-10 is
1
9
In a frequency polygon ___________ are used.
mid points of classes and frequencies
end points of classes and frequencies
upper boundaries of classes less than cumulative frequencies
lower boundaries of classes less than cumulative frequencies
In a histogram
The width of all rectangles are equal
The lengths of all rectangles are equal
The lengths and widths of all rectangles are equal
The lengths and widths of each rectangles are in proportion
The mean of the first 10 natural numbers is
55
The greater than cumulative frequency of a class is 83 and that of next class is 72 then the frequency of the class is
11
12
60
80