If you have a spinning wheel with 3 green sectors, 1 blue sector and 1 red sector, what is the probability of getting a green sector?
1/5
2/5
3/5
1
The difference between the maximum and minimum values of a variable is called its
Range
Variate
Frequency
None of these
Which of the following graph is used to represent percentage of observations?
Histogram
Pictograph
Pie chart
Frequency Polygon
Raw data is a
Collection of information in a systematic manner
Data available to us in an unorganized form
Pictorial representation of data
Sizes of shoes are ______ variable
Discrete
Continuous
Upper limit
What is the size of class interval 0-10?
0
9
10
The range of the data 7, 13 , 6 , 25 , 18 , 20 , 16 is
15
16
18
19
Which of the following variable is continuous?
Number of children in your class
Time
Sizes of shoes
Number of patients in a hospital
If the mean of a and 1/x is M, then mean of x^{2} and 1/x^{2} is
M^{2}
M^{2} /4
2M^{2} - 1
2M^{2} + 1
The midpoint of the class interval is called its
Class interval
Lower limit
Class mark