Answer: The correct option is (B) 0.10.
Step-by-step explanation: Given that ten outcomes are all equally likely from an event and we choose one of them at random.
We are to find the probability that the outcome we chose will be the outcome of the event.
Since the outcomes are equally likely, so
let A denotes the event that any one of the outcome is chosen and S be the sample space for the experiment.
Then, n(A) = 1 and n(S) = 10.
Therefore, the probability that the outcome we chose will be the outcome of the event is given by
Thus, teh required probability is 0.10.
Option (B) is CORRECT.