Final answer:
The median is the best measure of central tendency for the given data set.
Step-by-step explanation:
The measures of central tendency are statistical measures used to describe the center of a data set. In this case, the data set 5, 2, 6, 7, 3, 58 does not have a clear high frequency of any specific value, so the mode is not the best measure of central tendency. The range does not provide information about the center of the data. The mean is the sum of all the values divided by the number of values (5+2+6+7+3+58)/6 = 7.83. The median is the middle value when the data is arranged in order (2,3,5,6,7,58) = 5.5. Since the data set has outliers (e.g., 58), the best measure of central tendency would be the median, as it is not affected by extreme values.