To determine amount of units to inspect you must multiply number of units by which values?

• A. 0.5
• B. 0.058 or 0.29
• C. 1
• D. 0.03

Answer: (B)

You determine how many units to inspect by taking a fraction of the total number of units. The EPA guidance used in this context provides two acceptable fractions, 0.058 and 0.29, and you choose the one that fits the building situation.

Roughly 0.058 means about 6% of the units, used in smaller or lower-risk cases, while 0.29 means about 29% of the units for larger or higher-risk situations to get a more representative sample. You multiply the total number of units by one of these fractions and round to a whole unit to decide how many units to inspect.

This is why the correct answer lists both values: you select the appropriate fraction based on the building, rather than using a fixed multiplier like 0.5, 1, or 0.03.