Ineed plz ! just 2 questions anyone

06.01)a bag contains 20 marbles of the same size that are blue, green, and red. the probability of picking a blue marble is 20%. the probability of picking a green marble is 50%. determine the probability of picking a red marble from the bag and then classify the probability of picking a red marble as likely or not likely to occur.

06.02)gareth believes that if he flips a coin 820 times, it will land heads up exactly 410 times. what would you tell gareth about his prediction?