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:
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 the letter R can be calculated by dividing the frequency of R by the total number of times Jorelle picked a letter, which is 100.
Probability = Frequency of R / Total number of picks
Probability = 30 / 100
Probability = 0.30
To convert the probability to percent form, multiply by 100:
Probability = 0.30 * 100
Probability = 30%
Therefore, the probability that Jorelle will pick the letter R is 30%.