To meet a target of 98% accuracy across 200 entries, how many errors are allowed?

• A. 2 errors
• B. 4 errors
• C. 6 errors
• D. 8 errors

Answer: (B)

To meet 98% accuracy on 200 entries, first find how many correct items you need. Multiply 0.98 by 200 to get 196, so you must have at least 196 correct. That means you can have at most 4 errors (since 200 total minus 196 correct equals 4). If you had 6 or 8 errors, your correct count would drop to 194 or 192, yielding 97% or 96%—below the target. Having only 2 errors would give 198 correct (99%), which still meets the target, but four is the maximum you can tolerate while still meeting 98%.