In: Math
Math 1635 Statistics Probability (Chapter 4) Worksheet
1. If there are 20 marbles marked from 1 to 20 in the bag, what is the probability to pick a marble from the bag and the number can be
(a) divided by 2 or 5
(b) divided by 3 or 7
2. When a card is selected from the deck of 52 cards, find the probability of getting
(a) a spade or a face
(b) a queen or black
(c) a club or an 8
3. When 2 dice are rolled, find the probability of getting
(a) A sum of 7
(b) A sum greater than 8.
(c) A sum less than or equal to 5.
4. A bag contains 2 red, 3 green and 5 white balls. A ball is selected at random and its color is noted. Then it is replaced and another ball is selected and its color is noted. Find the probability of:
(a) selecting 2 green balls
(b) selecting red and then green balls