Verified Answer :

Average = Mean

To find the mean, add up the numbers and divide it by how many numbers there are.

So,  \(-2.6+1.8+(-3.3)+(-2.7)+2.2=-4.6\)

There are 5 numbers in total.

\(-4.6 \div 5=-0.92\)

To do these types of division, ignore the decimal and add a 0 at the end.

So we can do:
\(-460\div5=-92\)

And put back the decimal.
Hope this helps :)