4. ten outcomes are all equally likely from an event and you choose one of them at random. what is the probability that the outcome you chose will be the outcome of the event?
0.50
0.10
0
0.90

 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.