Question

How to find the mean of 12.2, 2.1, 0.0, 20.5, 5.5 and 1.0?

Answer 1

Answer:

20.5 mm is the range

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Answer 2

Answer:

thank

Step-by-step explanation:

Range = Maximum value - minimum value

= maximum rainfall - minimum rainfall

= 20.5 - 0.0

= 20.5mm

ii) Mean rainfall

= \frac{sum\ of\ rain\ fall\ \left(in\ mm\right)}{Number\ of\ days}\

= \ \frac{0.0\ +\ 12.2\ +\ 2.1\ +\ 0.0\ +\ 20.5\ +\ 5.5\ +\ 1.0}{7}\ =\ \frac{41.3}{7}mm

= 5.9mm

iii) Number of days on which rainfall was less than the mean rainfall

= Monday, Wednesday, Thursday, Saturday, Sunday

i.e. 5 days.