A letter of the alphabet is chosen at random. Find the probability that the letter selected is a vowel.

1/26

5/26

21/26

The correct answer is B. 5/26.

Step-by-step explanation:

Let's recall what is the formula of the probability of any event:

Probability of an event = Number of favorable outcome/Total number of favorable outcomes

Then, replacing with the values of our question:

Probability of selecting a vowel = Number of vowels/Total number of letters of the alphabet

Probability of selecting a vowel = 5/26

The correct answer is B. 5/26.