Solution: For a positively skewed distribution with a mean of m=20, the most probable value for the median is less than 20.
Step-by-step explanation:
We know that in a symmetric distribution, the relationship between mean, median and mode is:

In case of negatively skewed distribution, the relationship between mean,median and mode is:

In case of positively skewed distribution, the relationship between mean,median and mode is:

Therefore, for a positively skewed distribution with a mean of m = 20, the median would be less than Mean. Hence the probable value of median is less than 20