The marks obtained by 9 students in a test are 25, 20, 15, 45, 18, 7, 10, 38 and 12. Find the median.
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- Index number is a special type of ———-
- A period for which index number is determined is called as ——
- Index number calculated by Fisher’s formula is ideal because it satisfy:
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- The coefficient of determination must be
- In the regression equation Y = a+bX, the Y is called:
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- is data that is collected by a researcher from first-hand sources
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- Find the mean of 13,18,13,14,13,16,14,21,13
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- Find the median of the set = { 11,22,33,55,66,99
