Answer :
The arithmetic mean of two 1's three 2's four 3's five 4's and six 5's is 3.5
Given :
the arithmetic mean of two 1s three 2s four 3s five 4s and six 5s.
Arithmetic mean :
The arithmetic mean, also called the average or average value, is the quantity obtained by summing two or more numbers or variables and then dividing by the number of numbers or variables.
Arithmetic mean = 1 * 2 + 3 * 2 + 4 * 3 + 5 * 4 + 6 * 5 / 2 + 3 + 4 + 5 + 6
= 2 + 6 + 12 + 20 + 30 / 5 + 9 + 6
= 8 + 12 + 20 + 30 / 14 + 6
= 20 + 50 / 20
= 70 / 20
= 7/2
= 3.5
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