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. (1point)
To find the long-run relative frequency of tails, we first need to find the number of times tails was observed.
Total number of tosses = 300
Number of times heads was observed = 180
Number of times tails was observed = Total number of tosses - Number of times heads was observed
= 300 - 180
= 120
Now, to find the long-run relative frequency of tails, we divide the number of times tails was observed by the total number of tosses and express the answer in decimal form:
Relative frequency of tails = Number of times tails was observed / Total number of tosses
= 120 / 300
= 0.4
Therefore, the long-run relative frequency of tails is 0.4.