Final answer:
To calculate the number of times an event has occurred in a simulation, multiply the experimental probability (0.45) by the number of trials (380), resulting in 171 occurrences.
Step-by-step explanation:
The student is asking about the relationship between experimental probability and the actual number of times an event has occurred in a given number of trials. Given that the experimental probability is 0.45, and the number of trials is 380, to find the number of times the event occurred, we multiply the probability by the number of trials.
The formula to use in this case is: Number of times the event occurred = Experimental probability × Number of trials.
Number of occurrences = 0.45 × 380 = 171
Therefore, the event has occurred 171 times out of 380 trials.