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Statistics | Classification of Data

The data collected from which one of the following methods is not a primary data?
Study the following graph. Total exports for the given year is:
If the class size are unequal in a frequency distribution then the frequency densities are computed to draw
The skewness of a distribution is indicated by
Cumulative frequency distribution for a graph is called :
Ogives can be helpful in locating graphically the
Data represented through a histogram can help in finding graphically the
The mark (bar) used to represent the no. of occurrence of the score is called
If the data containing few distinct values are arranged in ascending order or descending order, then that data is known as
Bar Graph is –
The curve obtained by joining the points, whose x-coordinates are the upper limits of the class interval and y-coordinates are corresponding cumulative frequencies is called:
Consider the following statements in respect of histogram: 1. The histogram is a suitable representation of a frequency distribution of a continuous variable. 2. The area included under the whole histogram is the total frequency. Which of the above statements is/are correct?
A diagrammatical representation where a total of the parts make a meaningful whole is:
If computers and monitors are set in ‘sleep’ mode when not in use, the energy cost is reduced approximately by:
Consider the following statements in respect of a histogram: 1. The total area of the rectangles in a histogram is equal to the total area bounded by the corresponding frequency polygon and the x-axis. 2. When class intervals are unequal in a frequency distribution, the area of the rectangle is proportional to the frequency. Which of the above statements is/are correct?
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