The letter tiles C, A, R, E, and S are placed in a box. Without looking, Jorelle picks a letter tile from the box and records the result before placing it back. He repeats the procedure 100 times and observes the following results:

Question

Outcomes | C | A | R | E | S |
Frequency | 20 | 25 | 30 | 10 | 15 |
Based on the observed frequency, what is the probability that Jorelle will pick a letter R? The answer should be in percent form.
__ %

Answer 1

The probability of picking the letter R can be calculated by dividing the frequency of R by the total number of outcomes:

Probability = Frequency of R / Total outcomes
Probability = 30 / 100
Probability = 0.30 or 30%

Therefore, the probability that Jorelle will pick a letter R is 30%.