An event has odds in favour $4 : 5$, then the probability that event occurs, is
$\frac{1}{5}$
$\frac{4}{5}$
$\frac{4}{9}$
$\frac{5}{9}$
(c) Required probability $ = \frac{4}{{4 + 5}} = \frac{4}{9}.$
A party of $23$ persons take their seats at a round table. The odds against two persons sitting together are
A card is drawn at random from a pack of cards. The probability of this card being a red or a queen is
A die marked $1,\,2,\,3$ in red and $4,\,5,\,6$ in green is tossed. Let $A$ be the event, $'$ the number is even,$'$ and $B$ be the event, 'the number is red'. Are $A$ and $B$ independent?
The probability that a leap year selected at random contains either $53$ Sundays or $53 $ Mondays, is
The chances to fail in Physics are $20\%$ and the chances to fail in Mathematics are $10\%$. What are the chances to fail in at least one subject ………… $\%$
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