A question asking “how much greater” in a table is asking for a difference: the amount one entry exceeds another. First, match the two groups named in the question to their rows. Then subtract the smaller average from the larger one. Using a third row or adding the values answers a different question.
Hints
- Hint 1
A table’s row labels tell you which number belongs to each store type. Find the rows for warehouse stores and supermarkets before you calculate. What average is written next to each?
- Hint 2
“How much greater” asks for a difference, or how far apart two amounts are. Put the larger average first and subtract the smaller one. Adding them would give a total instead.
Step-by-step
Read the two rows and subtract
Step 1Find the averages being compared
No Desmos needed. The table gives both averages, and the comparison takes one subtraction. The warehouse store row shows employees on average, and the supermarket row shows . The question names those two store types, so the department store row isn’t needed.
- Step 2
Turn “how much greater” into subtraction
A difference is how far apart two amounts are. Let mean how many more employees warehouse stores averaged. So subtract the smaller average from the larger one: . Adding the averages would give their total, not the difference.
- Step 3
Find the difference
Subtract to find the gap:
Warehouse stores averaged more employees than supermarkets. Choice C.