What is the mean of the data set $2,4,6,8$?

• A. $4$
• B. $6$
• C. $8$
• D. $5$

Answer: (D)

Verified step by step guidance

1. Identify the data set given: 2, 4, 6, 8.
2. Recall that the mean (average) of a data set is calculated by summing all the values and then dividing by the number of values.
3. Calculate the sum of the data points: \$2 + 4 + 6 + 8$.
4. Count the number of data points, which is 4 in this case.
5. Divide the sum by the number of data points to find the mean: \(\frac{2 + 4 + 6 + 8}{4}\).