If a weapon system has a CEP of 20 meters, how many bombs will drop within 20 meters of the DPI?

If a weapon system has a CEP of 20 meters, how many bombs will drop within 20 meters of the DPI?

• A. All of the bombs
• B. A quarter
• C. Half of the bombs
• D. Three quarters

Answer: (C)

CEP, Circular Error Probable, is the radius around the designated point of impact within which about 50% of bombs are expected to land. So with a CEP of 20 meters, about half of the bombs will drop within 20 meters of the DPI. The rest land outside that radius. This is why half is the correct choice. The statement about all bombs, a quarter, or three quarters would imply different percentiles, which CEP does not indicate.

CEP, Circular Error Probable, is the radius around the designated point of impact within which about 50% of bombs are expected to land. So with a CEP of 20 meters, about half of the bombs will drop within 20 meters of the DPI. The rest land outside that radius. This is why half is the correct choice. The statement about all bombs, a quarter, or three quarters would imply different percentiles, which CEP does not indicate.