Answer:Missing data (or missing values) is defined as the data value that is not stored for a variable in the observation of interest. The problem of missing data is relatively common in almost all research and can have a significant effect on the conclusions that can be drawn from the data [1].
Answer:
HI!!! I believe your answer is option a because it looks like your not multiplying anything so hope this helps:)
Step-by-step explanation:
1 yard=3 feet
1 feet=12 inches
10x3=30 feet
30x12=360 inches360 inches divided by 4
The answer is that 90 4 inches pieces can be cut
