Step-by-step explanation:
Arithmetic mean has become the most widely used measure of central tendency of data. ... That is why arithmetic mean is regarded as the ideal measure of central tendency. One demerit of arithmetic mean is that it is affected by the extreme value (of observed data)
Answer:
See below
Step-by-step explanation:
The function 
oscillates between -1 and 1, so the range is 
.
<span>{(1, 2), (3, 2), (5, 7)} is a function
</span>
4 x 4 = 16
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