Question

some artists made masks for an art show.
making paper masks
(there is a line plot with masks made on the x - axis labeled 1, 2, 3, 4, 5, 6. the number of xs above each label: 1 x above 1, 1 x above 2, 1 x above 3, 2 xs above 4, 4 xs above 5, 1 x above 6)
what is the mean of the numbers?

Explanation:

Step1: Count the number of X's for each value

For 1: 1 X, so 1×1 = 1
For 2: 1 X, so 1×2 = 2
For 3: 1 X, so 1×3 = 3
For 4: 2 X's, so 2×4 = 8
For 5: 4 X's, so 4×5 = 20
For 6: 1 X, so 1×6 = 6

Step2: Calculate the total sum

Sum = 1 + 2 + 3 + 8 + 20 + 6 = 40

Step3: Calculate the total number of data points

Total number of X's = 1 + 1 + 1 + 2 + 4 + 1 = 10

Step4: Calculate the mean

Mean = $\frac{\text{Total Sum}}{\text{Total Number of Data Points}}$ = $\frac{40}{10}$ = 4

Answer:

4