Missing values in a dataset mean that ______.

• A. The data point is invalid
• B. The value is zero
• C. The observation has been omitted
• D. None of the above

Answer: (D)

Missing values mean there is no recorded data for that variable in a given observation. It isn’t implying that the data point is invalid, nor that the value is zero, and it doesn’t necessarily mean the entire observation is omitted—only that specific field is missing. Because of that, none of the other descriptions accurately describe missing data, so the correct takeaway is that there is no data available for that field.