2000017502
Level:
A
María has two children, at least one of them is a girl. What is the probability that they are both girls? Suppose that the probability of giving birth to a boy and a girl is the same.
Probability
2000017501
Level:
A
Assume that a year consists of
2010016907
Level:
B
Product quality inspection was performed. Inspectors reported that
2010016906
Level:
B
Inside a square is inscribed a circle. A point is chosen at random from inside the square. What is the probability that this point is not located also in the circle?
2010016905
Level:
B
There are sixty apples left on a tree and twelve of them have worms. We pick six apples at random. What is the probability that at least one of them is without a worm?
2010016904
Level:
B
Four dice are thrown. What is the probability that the sum is less than
2010016903
Level:
B
Two dice are rolled. What is the probability of getting
2010016902
Level:
B
Two dice are rolled. Find the probability that we get the number
2010016901
Level:
B
Two different dice (a white die and a black die) are rolled. Find the probability that we get the number
2010015505
Level:
B
The probability of a man hitting a target is