Question

Find out mode from the following frequency distribution by grouping method


Size Frequency
Size Less than 5 1
Size Less than 10 3
Size Less than 15 13
Size Less than 20 17
Size Less than 25 27
Size Less than 30 36
Size Less than 35 38

Answer 1

In 1698 Thomas Savery patented a pump with hand-operated valves to raise water from mines by suction produced by condensing steam. In about 1712 another Englishman, Thomas Newcomen, developed a more efficient steam engine with a piston separating the condensing steam from the water

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Answer 2

Explanation:

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