A die is thrown, find the probability of following events:A prime number will appear,
The sample space of the given experiment is given by
$S=\{1,2,3,4,5,6\}$
Let $A $ be the event of the occurrence of a prime number.
Accordingly, $A=\{2,3,5\}$
$\therefore P(A)=\frac{\text { Number of outcomes favourable to } A }{\text { Total number of possible outcomes }}=\frac{n(A)}{n(S)}=\frac{3}{6}=\frac{1}{2}$
The chance of throwing a total of $7$ or $12$ with $2$ dice, is
A box contains $10$ good articles and $6$ with defects. One article is chosen at random. What is the probability that it is either good or has a defect
One card is drawn from a pack of $52$ cards. The probability that it is a king or diamond is
Out of $60 \%$ female and $40 \%$ male candidates appearing in an exam, $60\%$ candidates qualify it. The number of females qualifying the exam is twice the number of males qualifying it. A candidate is randomly chosen from the qualified candidates. The probability, that the chosen candidate is a female, is.
Let $A, B, C$ be three mutually independent events. Consider the two statements ${S_1}$ and ${S_2}$
${S_1}\,\,:\,\,A$ and $B \cup C$ are independent
${S_2}\,\,:\,\,A$ and $B \cap C$ are independent
Then