Raw data is a
Collection of information in a systematic manner
Data available to us in an unorganized form
Pictorial representation of data
None of these
Which of the following graph is used to represent percentage of observations?
Histogram
Pictograph
Pie chart
Frequency Polygon
The class mark of the class 4 - 9 is
7
6.5
6
5.5
If the mean of a and 1/x is M, then mean of x2 and 1/x2 is
M2
M2 /4
2M2 - 1
2M2 + 1
The range of the data 7, 13 , 6 , 25 , 18 , 20 , 16 is
15
16
18
19
Frequency Distribution of Daily Income of 550 workers of a factory.
From the table I, which is the size of the class intervals?
325
100
25
100 - 125
__________ gives the number of times that a particular entry occurs.
Frequency
Raw data
In the class interval 35 - 46 ; the lower limit is
35
46
36
45
A quantity which is being measured in an experiment is called a
Data
Variable
Variate
Range
200 - 225
175 - 200
300 - 325