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) $$
To find the long-run relative frequency of tails, we can subtract the frequency of heads from the total number of tosses and divide by the total number of tosses:
Total number of tosses = 300
Number of heads observed = 180
Number of tails = 300 - 180 = 120
Long-run relative frequency of tails = 120 / 300 = 0.4
Therefore, the long-run relative frequency of tails is 0.4.