Year 2 Homework #17

Name ________________________

1). What is the probability of flipping a coin twice and getting heads both times? _________

2). What is the probability that a pair of dice will add up to more than 10? _________

3). What is the probability that two cards drawn together from a normal deck of 52 cards are both spades? _________


4). A bag of marbles has 6 red, 4 black, and 5 blue marbles. What is the probability of:

a). drawing a red marble, holding it, and then drawing a black marble? _________

b). drawing a red marble, putting it back, and then drawing a black marble? _________

c). drawing the four black marbles out in a row, on the first four tries? _________


5). In a standard deck of 52 cards what is the probability of ...

a). drawing a ten, holding it, then drawing another ten? _________

b). drawing a spade, holding it, then drawing another spade? _________

c). drawing five spades in a row (without replacing them)? _________


6). You have homework 70% of the time. The probablity of rain is 30%.

a). What is the probability that it does not rain? _________

b). What is the probability that it rains and you also have homework? _________


7). I flip a coin and I roll one die. What is the probability that I get a head on the coin and a 4 on the die? _________