Question

. Find the equation of a line parallel to the line
2x-y-9=0 and passing through the point of intersection
of lines 5x + y + 4 = 0 and 2x + 3y = 1.
Calculate mean deviation about mean for the following
frequency distribution:
cI |0-4| |4-8| |8-12| |12-16| |16-20|
f | 4 | |6 | | 8 | |5| | 2|
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Answer 1

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