A letter is drawn at random from a scrabble tile set and it is noted whether it is a vowel or a consonant. Then the tile is replaced. This is repeated 50 times. The final tally was 20 vowels and 30 consonants. What is the probability that a tile chosen at random will have a vowel on it?

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Solution

Probability of drawing a vowel = $\frac{20}{50}$ = 0.4.

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A letter is drawn at random from a scrabble tile set and it is noted whether it is a vowel or a consonant. Then the tile is replaced. This is repeated 50 times. The final tally was 20 vowels and 30 consonants. What is the probability that a tile chosen at random will have a vowel on it?

Probability of drawing a vowel = 2050 = 0.4.

Probability of drawing a vowel = $\frac{20}{50}$ = 0.4.