Question

ice skating last winter
the owner of an ice skating rink counted the number of times that people went skating at her rink.
number of times
what is the mean of the numbers?

Explanation:

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

For 1: 4 X's, so \( 1\times4 = 4 \)
For 2: 1 X, so \( 2\times1 = 2 \)
For 3: 1 X, so \( 3\times1 = 3 \)
For 4: 2 X's, so \( 4\times2 = 8 \)
For 5: 2 X's, so \( 5\times2 = 10 \)
For 6: 1 X, so \( 6\times1 = 6 \)

Step2: Calculate the total sum

Sum \( = 4 + 2 + 3 + 8 + 10 + 6 = 33 \)

Step3: Calculate the total number of data points

Total number of X's \( = 4 + 1 + 1 + 2 + 2 + 1 = 11 \)

Step4: Calculate the mean

Mean \( = \frac{33}{11} = 3 \)

Answer:

3