How is the median determined in cumulative frequency? Explain with examples.
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Explanation:
A frequency-curve is a smooth curve for which the total area is taken to be unity. It is a limiting form of a histogram or frequency polygon. The frequency-curve for a distribution can be obtained by drawing a smooth and free hand curve through the mid-points of the upper sides of the rectangles forming the histogram.
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Explanation:
cos 180 are both = 1 and -1, respectively
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