Please answer the problem from number 1-4. Answer all the problem. Please show your step-by-step solution on how you get the answers. Thank you so much!

ACTIVITY 3 Find the probability. Show your solution and express your answer in lowest term. 1. A hat contains 40 marbles, 16 of which are red and the remaining marbles are green. If one marble is randomly selected out of his hat, what is the probability that this marble is a) red? b) green? (10 points) 2. There are 50 students in a class and 28 are boys. If a student is selected randomly for a survey, what is the probability of selecting a girl? (5 points) 3. In a deck of cards, what is the probability of getting a number that are less than 5? (5 points) 4. What is the probability of getting a spades in a deck of card? (5 points)