Final answer:
To find the empirical probability of getting at least two heads when three coins are tossed 80 times, count how many times this outcome occurred during the trials (n) and divide by the total number of trials (80).
Step-by-step explanation:
To calculate the empirical probability of getting at least two heads when three coins are tossed, we must first count the number of favorable outcomes (where at least two heads appear) and then divide this by the total number of trials. Let's assume in 80 trials, we have a certain number of times where we observed at least two heads, which we will call 'n'.
The probability is calculated using the formula:
P(at least two heads) = Number of times at least two heads occurred / Total trials
So if 'n' is the number of times at least two heads occurred in 80 throws, then:
P(at least two heads) = n / 80
If you have the exact number of times 'n' that at least two heads occurred, just put that number in place of 'n' and divide by 80 to get the empirical probability.