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प्रश्न
For a two-child family, let E be “both children are boys” and F be “at least one child is a boy.” Which pair correctly gives E and F?
पर्याय
\[E=\{(b,b),(g,g)\},\quad F=\{(g,b),(b,g)\}\]
\[E=\{(b,b),(g,b),(b,g)\},\quad F=\{(b,b)\}\]
\[E=\{(b,b)\},\quad F=\{(b,b),(g,b),(b,g)\}\]
\[E=\{(g,g)\},\quad F=\{(b,b),(g,g)\}\]
MCQ
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उत्तर
Both children are boys only for \[(b,b)\]. At least one child is a boy includes every outcome except \[(g,g)\].
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