1. Probability of TWO EVENTS
Independent Events:
Probability (A and B) =
1. What is the probability of tossing a 2 on a fair die and tossing heads on a coin?
2. What is the probability of tossing three heads in three tosses of a coin?
Probability of TWO EVENTS
Dependent Events:
Probability (A then B) =
5. A box contains 6 red marbles, 4 green marbles, and 5 purple marbles. What is the probability that a red marble is drawn on the first draw (is not replaced), and a purple marble is drawn on the second draw?
6. A jar contains 10 pennies, 20 quarters, and 30 dimes. Two coins will be selected, one at a time, with no replacement. What is the probability of selecting a quarter, followed by a dime?
Events that
do not influence one another.
Events that influence each other. One event affects the probability of the second event.
3. A student flips a coin and then rolls a die. What is the probability the outcome will be tails and a number less than 5? C.
B. D.
4. A fair number cube is rolled two times. What is the probability a 3 and then an even number will be rolled? C.
B. D.