A single coin is tossed 300 times. Heads were observed 180 times. What is the long-run relative frequency of tails? Express the answer in decimal form. (1 point)
The total number of tosses is 300. If heads were observed 180 times, then tails must have been observed 300 - 180 = 120 times.
The relative frequency of tails is calculated by dividing the number of tails observed by the total number of tosses:
Relative frequency of tails = 120 / 300 = 0.4
Therefore, the long-run relative frequency of tails is 0.4.