Explanation
To determine the probability of choosing a vowel from the given sequence of letters, we need to count the number of vowels and the total number of letters, and then divide the number of vowels by the total number of letters.
First, let's identify all the vowels in the given sequence:
O, A, L, C, E, B, B, T, T, M, A, M, B, C, C.
In this sequence, the vowels are: O, A, E, A. We have:
- O: 1 occurrence
- A: 2 occurrences
- E: 1 occurrence
This gives us a total of 4 vowels (1 O + 2 A + 1 E = 4 vowels).
Next, let’s count the total number of letters in the sequence:
O, A, L, C, E, B, B, T, T, M, A, M, B, C, C.
There are 15 letters in total.
To find the probability of selecting a vowel, we use the formula for probability:
\[ \text{Probability} = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} \]
where the number of favorable outcomes is the number of vowels and the total number of outcomes is the total number of letters.
Plugging in the numbers, we get:
\[ \text{Probability of choosing a vowel} = \frac{4}{15} \]
Therefore, the probability of choosing a vowel from this sequence of letters is \(\frac{4}{15}\).