Question

a letter is chosen from the word triangle. what is the probability that it is a vowel

Answer 1

let E be the event where the letter is a vowel.

p(E)=one vowel /no .of letters
p(E)=n(f)/n(s)
p(E)=1/8

Answer 2

p (E)=no of vowels
p(E)=n (f)n (s)
p (e)=1/8