Multiple choice

For a given data with 40 observations the less than ogive and the more than ogive interest at (20.5,15). The median of the data is:

  1. 5.5

  2. 20.5

  3. 15

  4. 40
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B Correct answer
Explanation

The median is represented by the x-coordinate of the point where the less-than and more-than ogives intersect. Since the intersection is at (20.5, 15), the median is 20.5.

AI explanation

The less than ogive and the more than ogive are used to find the median of a grouped frequency distribution graphically. The x-coordinate of their intersection point always gives the median of the data. Since the two ogives intersect at (20.5, 15), the median is 20.5.

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