A single coin is tossed 300 times. Heads was observed 180 times. What is the long run relative frequency of tails? Express the answer in decimal form.
To find the long run relative frequency of tails, we can subtract the number of times heads was observed from the total number of times the coin was tossed and then divide by the total number of tosses:
Total number of tosses = 300
Number of times heads was observed = 180
Number of times tails was observed = 300 - 180 = 120
Relative frequency of tails = Number of times tails was observed / Total number of tosses
Relative frequency of tails = 120 / 300
Relative frequency of tails = 0.4
Therefore, the long run relative frequency of tails is 0.4.