A single coin is tossed 300 times. heads were observed 180 times. What is the long-run relative frequency of tails? Express your anwer in decimal form.
To calculate the long-run relative frequency of tails, we need to subtract the number of times heads occurred from the total number of tosses, and then divide that by the total number of tosses.
Total number of tosses = 300
Number of times heads occurred = 180
Number of times tails occurred = 300 - 180 = 120
Long-run relative frequency of tails = Number of times tails occurred / Total number of tosses
Long-run relative frequency of tails = 120 / 300
Long-run relative frequency of tails = 0.4
Therefore, the long-run relative frequency of tails is 0.4.