Contest organizer simulated a raffle using 500 trials and recorded the grade level of the winner each time. The results are shown in the table. Based on the data from the simulation, what is the probability of the winner will be from the yellow team? Students, blue, green, red, yellow, frequency, 118, 112, 90, 85.

To find the probability of the winner being from the yellow team, we need to first calculate the total number of trials (500) and the frequency of winners from the yellow team (85).

Then, the probability of the winner being from the yellow team is given by:

Probability = Frequency of yellow team / Total number of trials
Probability = 85 / 500
Probability = 0.17

Therefore, the probability of the winner being from the yellow team is 0.17 or 17%.