Find the probability

A bag contains 5 white and 7 black balls . 3 balls are drawn at random . find the probability that (i) all are white (ii) one white and 2 black

In a survey conducted at local restaurant during breakfast hours, 20 people preferred orange juice, 16 preferred grapefruit juice, and 9 preferred apple juice with breakfast. If a person is selected at random, find the probability that he or she prefers grapefruit juice.

Q If 3 books are picked at random from a shelf containing 5 novels, 3 books of poems, and a dictionary, what is the probability that (a) The dictionary is selected? (b) 2 novels and 1 book of poems are selected?.

A six sided dicen numbered 1-6 is rolled. what's the probability that the roll results in an odd number or a number less than 4?

In a study of 685 cars in a parking lot, there were only 3 different types: sedan,sports car and mini van. 211 of the cars were mini vans. Use this information to estimate the probability of choosing a car that is a sedan or sports car.