Question

mentally check whether your answer is reasonable.

• 23. find the average of 2.4, 6.3, and 5.7.

(18)

Explanation:

Step1: Find the sum of the numbers

$$2.4 + 6.3+5.7$$
$$=2.4+(6.3 + 5.7)$$
$$=2.4 + 12$$
$$=14.4$$

Step2: Divide the sum by the number of values

The number of values is \(n = 3\).
The average \(\bar{x}=\frac{14.4}{3}\)
$$\bar{x}=4.8$$

Answer:

\(4.8\)