Question

Due to climate change, a certain place experienced an extreme change in weather. The following are the recorded temperatures: 15˚C, 1˚C, -4˚C, 3˚C, -10˚C, -7˚C, and 21˚C. What is the average temperature of all the given days?

The average temperature of all the given days is 19/7˚C or 2.7˚C
The average temperature of all the given days is -19/7˚C or -2.7˚C
The average temperature of all the given days is 61/7˚C or 8.7˚C
The average temperature of all the given days is -61/7˚C or -8.7˚C

Answer 1

Answer: Choice A) The average temp is 19/7 or 2.7 degrees Celsius

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Step-by-step explanation:

Ignore the ˚C and focus on the numbers only

We have this set of values

15, 1, -4, 3, -10, -7, 21

Add them up to get

15+1+(-4)+3+(-10)+(-7)+21 = 19

Then divide that sum over the total number of items in the set, which in this case is 7.

That's how we get to 19/7 which approximates to 2.7 when rounding to one decimal place.