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 long-run relative frequency of tails can be calculated by subtracting the frequency of heads from the total number of tosses and then dividing by the total number of tosses:
Total number of tosses = 300
Frequency of heads = 180
Frequency of tails = total number of tosses - frequency of heads
= 300 - 180
= 120
Long-run relative frequency of tails = Frequency of tails / Total number of tosses
= 120 / 300
= 0.4
Therefore, the long-run relative frequency of tails is 0.4.