que - write the sample space for choosing a vowel from the english alphabet . also find out the probability of choosing a vowel .

S = {A, B, C, D, E, ................,Z}

Now, vowels are: A, E, I , O and U.

We know that :

Number of alphabets = 26

Total number of possible outcomes = 26

Number of vowels = 5

Number of favourable outcomes = 5

$\mathrm{probability}\mathrm{of}\mathrm{getting}\mathrm{a}\mathrm{vowel}=\frac{\mathrm{number}\mathrm{of}\mathrm{favourable}\mathrm{outcomes}}{\mathrm{total}\mathrm{possible}\mathrm{outcomes}}=\frac{5}{26}$

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