A box has 3 one-dollar bills, 2 five-dollar bills, 2 ten-dollar bills, and 1 twenty-dollar bill. A student selects one bill from the box at random.
PART A Develop a probability model to compare the probability of selecting $5 to the probability of selecting $10. Explain.
PART B how does the probability of selecting $1 compare to the probability of selecting $20? explain​