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 results before placing it back. He repeats the procedure 100 times and observes the following results. Customer: C-20, A-25, R-30, E-10, S-15. Based on the observed frequency, what is the probability that jorelle will pick a letter R? The answer should be in percent form.
The probability of picking a letter R can be calculated by taking the frequency of R and dividing it by the total number of trials.
P(R) = Number of R occurrences / Total number of trials
P(R) = 30 / 100
P(R) = 0.3
P(R) = 30%
Therefore, based on the observed frequency, the probability that Jorelle will pick a letter R is 30%.