In an Experiment on Parapsychology a Scientist Wants to Investigate

In an experiment on parapsychology a scientist wants to investigate how well a subject can correctly guess what symbol the experimenter is thinking of. The experimenter chooses from 4 different possible symbols. To avoid bias the experimenter uses a random number table to select a symbol to concentrate on for each trial. Assuming the experiment is not biased what are the probabilities for the following outcomes if chance alone is operating?