The English alphabet has a total of 26 letters. The vowels are: A, E, I, O, U, which gives us 5 vowels in total.
To find the number of consonants, we subtract the number of vowels from the total number of letters:
Total letters = 26
Vowels = 5
Consonants = 26 - 5 = 21
The probability of selecting a consonant is the number of consonants divided by the total number of letters:
\[ \text{Probability of selecting a consonant} = \frac{\text{Number of consonants}}{\text{Total letters}} = \frac{21}{26} \]
Thus, the probability of selecting a consonant is \(\frac{21}{26}\).