Thursday, October 30, 2008

Time For Self Evaluation

Directions: Read each question below and tick mark the correct option.


1. Which of the following is the sample space when 2 coins are tossed?
  
 
 {H, T, H, T}
 {H, T}
 {HH, HT, TH, TT}
 None of the above.




2. At Kennedy Middle School, 3 out of 5 students make honor roll. What is the probability that a student does not make honor roll?
  
 
65%
40%
60%
None of the above.




3. A large basket of fruit contains 3 oranges, 2 apples and 5 bananas. If a piece of fruit is chosen at random, what is the probability of getting an orange or a banana?
  
 






None of the above.




4. A pair of dice is rolled. What is the probability of getting a sum of 2?
  
 






None of the above.



5. In a class of 30 students, there are 17 girls and 13 boys. Five are A students, and three of these students are girls. If a student is chosen at random, what is the probability of choosing a girl or an A student?
  
 






None of the above.




6. In the United States, 43% of people wear a seat belt while driving. If two people are chosen at random, what is the probability that both of them wear a seat belt?
  
 
86%
18%
57%
None of the above.



7. Three cards are chosen at random from a deck without replacement. What is the probability of getting a jack, a ten and a nine in order?
  
 






None of the above.



8. A city survey found that 47% of teenagers have a part time job. The same survey found that 78% plan to attend college. If a teenager is chosen at random, what is the probability that the teenager has a part time job and plans to attend college?
  
 
60%
63%
37%
None of the above.




9. In a school, 14% of students take drama and computer classes, and 67% take drama class. What is the probability that a student takes computer class given that the student takes drama class?
  
 
81%
21%
53%
None of the above.




10. In a shipment of 100 televisions, 6 are defective. If a person buys two televisions from that shipment, what is the probability that both are defective?
  
 






None of the above.

11. If a single 6-sided die is rolled, what is the probability of rolling a number that is not 8?
  
 


1

0

None of the above.