Question

r is a necessary condition for s means __________.

(a) If r then s (c) If not s then not r

(b) If s then r (d) r if, and only if, s​

Answer 1

A necessary condition for this computer program to be correct is that it not produce error messages during translation. SUBJECTS.

Answer 2

The correct answer is (d) r if, and only if, s​.

Explanation:

• r is a necessary condition for s means r if, and only if, s​.
• A necessary condition is a condition that must be present for an event to occur.
• A sufficient condition is a condition or set of conditions that will produce the event.
• A necessary condition must be there, but it alone does not provide sufficient cause for the occurrence of the event.