Question

find the mean of 9, 9, 9, 4, 5, 6 graphically.

9 + 9 + 9 + 4 + 5 + 6 = 42

what is the average value?

try

Explanation:

Step1: Recall the formula for mean

The mean (average) of a set of numbers is calculated by dividing the sum of the numbers by the count of the numbers. The formula is $\text{Mean} = \frac{\text{Sum of numbers}}{\text{Number of numbers}}$.

Step2: Identify the sum and the count

From the given, the sum of the numbers $9 + 9 + 9 + 4 + 5 + 6$ is $42$ (as provided). The number of numbers in the set is $6$ (since we have 9, 9, 9, 4, 5, 6 – that's 6 numbers).

Step3: Calculate the mean

Using the formula, we divide the sum by the count: $\text{Mean} = \frac{42}{6}$.

Step4: Perform the division

$\frac{42}{6} = 7$.

Answer:

7