Question

Problem 11a) Find the average of 12, 0, 4, 1,8onb) The average of 5 numbers is 5. four of the numbersare 5.3, 7. 8. Then the fourth number must beiveQuestion 121 pts

Answer 1

We will have the following:

a) We will have that the average will be:

$x=\frac{12+0+4+1+8}{5}\Rightarrow x=4.6$

b) We will have that the missing number is:

$5=\frac{5+3+7+8+a}{5}\Rightarrow25=23+a$$\Rightarrow a=2$