Question

Which of the following choices represents the average of other four?

Answer 1

Answer:

B) -3

Step-by-step explanation:

The average can be found by dividing the sum of the numbers by the total number of numbers.

$mean = \frac{the \: sum}{n}$

$mean = \frac{4 + ( - 4) + ( - 17) + 5}{4}$

$mean = \frac{0 + ( - 12)}{4}$

$mean = \frac{ - 12}{4}$

$mean = - 3$

The mean is -3, so we can say the answer is B.

Answer 2

Answer:

B. -3.

Step-by-step explanation:

A ' middle' number looks like -3.

(4 + -4 - 17 + 5) / 4

= (-21 + 9) /4

= -12/4

= -3.