Answer: B) 6.5
Explanation:
To find the median of the data set, we need to arrange the numbers in order from smallest to largest:
3, 4, 6, 7, 10, 12
The median is the middle value. In this case, we have an even number of values, so we need to take the average of the two middle values:
Median = (6 + 7) / 2 = 6.5
Therefore, the answer is B. 6.5.