1. Which of the following sample spaces correctly lists all the possible outcomes for flipping a coin and spinning a four-colored spinner (red, blue, green, and yellow)?
A. H-red, H-blue, H-green, H-yellow, T-yellow, T-green, T-blue, T-red
B. H-red, T-red, H- blue, T-blue, H-green, T-yellow
C. T-yellow, H-red, T-blue, H-green, T-green, H-yellow, T-red
D. H-red, T-blue, H-green T-yellow
2. A number cube is rolled. What is P(3 or an even number)?
A. 1/2
B. 2/3
C. 4/2
D. 1/6
Which of the following is a certain event?
A. Rolling a composite number on a number cube
B. Rolling a number greater than 1 on a number cube
C. Rolling an odd or even number on a number cube
D. Rolling an odd or even number greater than 7
3. A jar contains 5 green erasers, 2 striped erasers, 4 pink erasers, and 3 white erasers. You select an eraser at random. What is P(not pink)?
A. 4/14
B. 2/5
C. 5/7
D. 1/7
4. You write each letter of the word MATHEMATICIAN on a piece of paper and put them in a bag. You randomly select one piece from the bag. What is P(T or A)?
A. 5/13
B. 5/8
C. 1/3
D. 8/13
5. You have 3 pairs of white socks, 4 pairs of black socks, and 2 pairs of colored socks in your drawer. What is the probability that you reach into the drawer and randomly select a pair of white socks?
A. 1/2
B. 1/3
C. 2/3
D. 3/7
Please help. There are 25 questions in all, but these five I am stumped on. Thanks in advance.
5 answers
1.B
2.A
3.C
4.B
5.C
6.B
7.C
8.B
9.A
10.B
Your welcome.
26 answers