MCQ
A single letter is selected at random from the word “$PROBABILITY$”. The probability that the selected letter is a vowel is
- A$\frac{2}{{11}}$
- B$\frac{3}{{11}}$
- ✓$\frac{4}{{11}}$
- D$0$
hence the required probability $ = \frac{{1 + 2 + 1}}{{11}} = \frac{4}{{11}}.$
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$(A)$ If $L$ has exactly one element, then $|s| \neq|t|$
$(B)$ If $|s|=|t|$, then $L$ has infinitely many elements
$(C)$ The number of elements in $L \cap\{z:|z-1+i|=5\}$ is at most $2$
$(D)$ If $L$ has more than one element, then $L$ has infinitely many elements