Since there are 10 possible options for a person to be left-handed or right-handed, the probability of a randomly-selected person being left-handed is 1 out of 10, or 1/10.
so on a probability line what is it? unlikely or not likely
On a probability line, a probability of 1/10 would be considered as unlikely. This is because the probability is low, indicating that it is not very common for a randomly-selected person to be left-handed.
