Answer: D. the value of error between a sample statistic and an actual population parameter
Explanation:
In a study , the margin of error gives the amount of the random variation of the actual result from its estimation.
So, it is the value of error between a sample statistic( which is estimated population parameter until actual is known) and an actual population parameter.
Hence, the best statement to represent the margin of error :
D. the value of error between a sample statistic and an actual population parameter