Introduction:
The scientific methods of collection of data, its classification and application to commerce and everyday life is called statistics.
Graphical Representation:
There are various methods of graphical representation of statistical data. In our study, we learn only two types. (i) Histogram (ii) Ogive or Cumulative Frequency Curve.
Ogive (Cumulative Frequency Curve):
A plot of the cumulative frequency against the upper class boundary with the points joined by line segments. Any continuous cumulative frequency curve, including a cumulative frequency polygon, is called an ogive. There are two ways of constructing an ogive or cumulative frequency curve. (Ogive is pronounced as O-jive). The curve is usually of 'S' shape.
Summary:
1. Two types of graphical representation of data are the histogram and the ogive.
2. A histogram is a diagram which represents the class interval and frequency in the form of a rectangle.
3. An ogive or a cumulative frequency curve is a 's' shaped curve. Points on the ogive have abscissae as the actual upper / lower limits for 'less than' / more than curve and ordinates as the cumulative frequencies.
Hope you liked the above explanation. Please leave your comments, if you have any doubts.
The scientific methods of collection of data, its classification and application to commerce and everyday life is called statistics.
Graphical Representation:
There are various methods of graphical representation of statistical data. In our study, we learn only two types. (i) Histogram (ii) Ogive or Cumulative Frequency Curve.
Ogive (Cumulative Frequency Curve):
A plot of the cumulative frequency against the upper class boundary with the points joined by line segments. Any continuous cumulative frequency curve, including a cumulative frequency polygon, is called an ogive. There are two ways of constructing an ogive or cumulative frequency curve. (Ogive is pronounced as O-jive). The curve is usually of 'S' shape.
Summary:
1. Two types of graphical representation of data are the histogram and the ogive.
2. A histogram is a diagram which represents the class interval and frequency in the form of a rectangle.
3. An ogive or a cumulative frequency curve is a 's' shaped curve. Points on the ogive have abscissae as the actual upper / lower limits for 'less than' / more than curve and ordinates as the cumulative frequencies.
Hope you liked the above explanation. Please leave your comments, if you have any doubts.
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