A letter is chosen randomly from the 26 letters in the alphabet. Find the probability of choosing a consonant.

5 answers

21/26

or if you include y as a vowel

20/26 = 10/13
pr=1-pr(vowel)
vowels: a,e,i,o, u and y.

pr=1- 6/26 unless you believe in only five vowels.
empirical
I think that this is the worst possible answer to help a 6th grader.
There are 5 vowels in the alphabet of 26 letters. So the probability is 5/26😉