Florida National Different Types of Probabilities Multiple Choice Questions

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1. 
   
   Question 21

   2.5 PointsWhat are the boundaries of the class 12-16?

   1. 11.5 and 16.5
   2. 10 and 18
   3. 12 and 16
   4. 4

2. 
   
   Question 22

   2.5 PointsA Pareto chart arranges data from largest to smallest according to frequencies.

   1. True
   2. False

3. 
   
   Question 23

   2.5 PointsFind the range of the set of values 4, 15, 3, 10, and 5.

   1. 3
   2. 15
   3. 9
   4. 12

4. 
   
   Question 24

   2.5 PointsA weighted mean is used when the values of the data set are not all equally represented.

   1. True
   2. False

5. 
   
   Question 25

   2.5 PointsFind the median for the following data. 6, 7, 4, 5, 3, 7, 4

   1. 3
   2. 4
   3. 5
   4. 7

6. 
   
   Question 26

   2.5 PointsWhat is the median of the following set of values? 8, 6, 3, 1, 12

   1. 3
   2. 5
   3. 6
   4. 7

7. 
   
   Question 27

   2.5 PointsIf a data set has 9 values and a standard deviation 9.4, then the variance is ________.

   1. 88.4
   2. 3.1
   3. 29.5
   4. 28.2

8. 
   
   Question 28

   2.5 PointsWhat is the mean of the following data set? 5, 9, 12, 13, 14

   1. 8.0
   2. 10.6
   3. 12.0
   4. 15.4

9. 
   
   Question 29

   2.5 PointsWhat is the mode of the following data set? 8, 22, 20, 16, 20, 18, 15

   1. 14
   2. 18
   3. 16
   4. 20

10. 
    
    Question 30

    2.5 PointsA coin is tossed 5 times. Find the probability that all 5 tosses are tails.

    1. 
    2. 
    3. 
    4. 

11. 
    
    Question 31

    2.5 PointsIf a red suit is drawn from an ordinary deck of cards, what is the probability that the card is a diamond?

    1. 
    2. 
    3. 
    4. 

12. 
    
    Question 32

    2.5 PointsA gumball machine contains 300 grape flavored balls, 400 cherry flavored balls, and 500 lemon flavored balls. What is the probability of getting 1 grape ball, 1 cherry ball, and 1 lemon ball if each ball was removed and then replaced before choosing the next from the machine?

    1. 0.0264
    2. 0.0531
    3. 0.0347
    4. 0.0482

13. 
    
    Question 33

    2.5 PointsA probability experiment has two steps. There are two possible results for the first step, call them “A” and “B”. If the result for the first step was “A”, then there would be 5 possible results for the second step. If the result for the first step was “B”, then there would be 16 possible results for the second step. How many possible outcomes are there for this experiment?

    1. 80
    2. 10
    3. 16
    4. 21

14. 
    
    Question 34

    2.5 PointsIf a sportscaster makes an educated guess as to how well a team will do this season, he is using what type of probability?

    1. classical probability
    2. conditional probability
    3. empirical probability
    4. subjective probability

15. 
    
    Question 35

    2.5 PointsWhen two events are independent, the probability of both occurring is:

    1. 
    2. 
    3. 
    4. 

16. 
    
    Question 36

    2.5 PointsIf a coin is tossed three times, the probability that the coin lands on heads at least one of those three times is 7/8.

    1. True
    2. False

17. 
    
    Question 37

    2.5 PointsWhat is the set of all possible outcomes of a probability experiment?

    1. an outcome
    2. the sample space
    3. events
    4. a Venn diagram

18. 
    
    Question 38

    2.5 PointsContinuous random variables are obtained from data that can be measured rather than counted.

    1. True
    2. False

19. 
    
    Question 39

    2.5 PointsFind the mean of the distribution shown below. X234P(X)0.350.240.41

    1. 1.56
    2. 2.06
    3. 2.56
    4. 3.06

20. 
    
    Question 40

    2.5 PointsA university has 10,000 students of which 35% are male and 65% are female. If a class of 30 students is chosen at random from the university population, find the mean and variance of the number of male students.

    1. Mean = 19.5, Variance = 2.6
    2. Mean = 10.5, Variance = 2.6
    3. Mean = 19.5, Variance = 6.8
    4. Mean = 10.5, Variance = 6.8