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Probability Basic — Applied Maths STD 11 Science — Question

CBSE BoardEnglish MediumSTD 11 ScienceApplied MathsProbability Basic1 Mark
MCQ
If a single letter is selected at random from the word 'PROBABILITY', then the probability of vowels is
  • A
    $\frac{1}{3}$
  • ✓
    $\frac{4}{11}$
  • C
    $\frac{2}{11}$
  • D
    $\frac{3}{11}$
✓

Answer

Correct option: B.
$\frac{4}{11}$
(B) $\frac{4}{11}$
Explanation : Total number of alphabets in the word 'PROBABILITY' $=11$
Number of vowels $=4$
$\therefore$ Required probability $=\frac{4}{11}$

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