A single queen of sauce, 300 times heads was observed 180 times. What is the long run relative frequency of tails expressed the answer in decimal form

The long run relative frequency of tails can be calculated by dividing the number of tails observed by the total number of observations:

Total number of observations = 300

Number of tails observed = 300 - 180 = 120

Relative frequency of tails = Number of tails observed / Total number of observations
Relative frequency of tails = 120 / 300

Relative frequency of tails = 0.4

Therefore, the long run relative frequency of tails expressed in decimal form is 0.4.