VERY EASY PROBABILITIES

If the probability of seeing a bear in the woods is 0.2, and you go to the woods 5 times, what is the probability of not seeing a bear at all during these visits?

• 0.8

• 0.32768

• 0.2

• 0.1

If you flip a coin 3 times, what is the probability of getting exactly 2 heads?

If the probability of a chicken crossing the road is 0.3, and you observe 10 chickens, what is the probability that exactly 3 chickens cross the road?

• 0.2668

• 0.3

• 0.5

• 0.9

In a deck of 52 cards, what is the probability of drawing either a heart or a queen?

If you roll a standard six-sided die twice, what is the probability of rolling a sum of 8?

If the probability of catching a fish with eyes is 0.6, and you catch 4 fish, what is the probability that at least one fish has no eyes?

• 0.8704

• 0.4

• 0.5

• 0.1296

If you have a bag with 3 red marbles and 7 blue marbles, and you draw two marbles without replacement, what is the probability that both are red?

What is the probability of rolling an even number on a standard six-sided die three times in a row?

If you have a 20% chance of rain today, and a 30% chance of rain tomorrow, what is the probability it will rain on at least one of these days?

• 0.44

• 0.5

• 0.56

• 0.6

In a class of 30 students, 18 are girls. If two students are selected at random, what is the probability that both are girls?