statistics help - 26278

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kthrace05

kthrace05

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  • From: Mathematics,
  • Due on: Fri 27 Sep, 2013 (10:50am)
  • Asked on: Fri 27 Sep, 2013
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  1. Please put your answer in fraction form, fully reduced. Ex. 5/12

    If a die is rolled one time, find this probability:

    b. Of getting a number greater than 6 

Question 2

  1.  

    Please put your answer in fraction form, fully reduced. Ex. 5/12

    If a die is rolled one time, find this probability:

    c. Of getting an odd number 

 

Question 3

  1.  

    If a die is rolled one time, find this probability:

    d. Of getting a 4 or an odd number 

1 points   

Question 4

  1.  

    Please put your answer in fraction form, fully reduced. Ex. 5/12

    If a die is rolled one time, find this probability:

    f. Of getting a number greater than or equal to 3 

 

Question 5

  1.  

    Please put your answer in fraction form, fully reduced. Ex. 5/12

    If a die is rolled one time, find this probability:

    g. Of getting a number greater than 2 and an even number 

 

Question 6

  1.  

    Please put your answer in fraction form, fully reduced. Ex. 5/7

    If one card is drawn from a deck, find the probability of getting the following result:

    d. A 3 or an 8 

 

Question 7

  1.  

    Please put your answer in fraction form, fully reduced. Ex. 5/7

    If one card is drawn from a deck, find the probability of getting the following result:

    e. A 6 or a spade 

 

Question 8

  1.  

    Please put your answer in fraction form, fully reduced. Ex. 5/7

    If one card is drawn from a deck, find the probability of getting the following result:

    g. A black king 

 

Question 9

  1.  

    Please put your answer in fraction form, fully reduced. Ex. 5/7

    If one card is drawn from a deck, find the probability of getting the following result:

    h. A red card and a 7 

 

Question 10

  1.  

    Please put your answer in fraction form, fully reduced. Ex. 5/7

    If one card is drawn from a deck, find the probability of getting the following result:

    i. A diamond or a heart 

Question 11

  1.  

    Please put your answer in fraction form, fully reduced. Ex. 5/7

    If one card is drawn from a deck, find the probability of getting the following result:

    j. A black card 

 

Question 12

  1.  
    Answer in fraction form, fully reduced.

    In a office there are five women and four men. If one person is selected, find the probability that the person is a women. 

 

Question 13

  1.  

    Answer in decimal form. Ex. .67

    Of the top 10 cars and trucks based on gasmileage, 4 are Hondas, 3 are Toyotas, and 3 are Volkswagons. Choose one at random. Find the probability that the car is Japanese or German. 

 

Question 14

  1.  

    Determine whether the following event is mutually exclusive or not mutually exclusive.

    a. Roll a die: Get an even number, and get a number less than 3.

    a.

    mutually exclusive

    b.

    not mutually exclusive

Question 15

  1.  

    Determine whether the following event is mutually exclusive or not mutually exclusive.

    b. Roll a die: Get a prime number (2,3,5) and get an odd number.

    a.

    mutually exclusive

    b.

    not mutually exclusive

 

Question 16

  1.  

    Determine whether the following event is mutually exclusive or not mutually exclusive.

    c. Roll a die: Get a number greater than 3, and get a number less than 3.

    a.

    mutually exclusive

    b.

    not mutually exclusive

 

Question 17

  1.  

    Determine whether the following event is mutually exclusive or not mutually exclusive.

    d. Select a student in your class. The student has blond hair and the student has blue eyes.

    a.

    mutually exclusive

    b.

    not mutually exclusive

 

Question 18

  1.  

    Determine whether the following event is mutually exclusive or not mutually exclusive.

    e. Select a student in your college. The student is a sophomore and the student is a business major.

    a.

    mutually exclusive

    b.

    not mutually exclusive

 

Question 19

  1.  

    Determine whether the following event is mutually exclusive or not mutually exclusive.

    f. Select any course. It is a Calculus course and it is an English course.

    a.

    mutually exclusive

    b.

    not mutually exclusive

 

Question 20

  1.  

    Determine whether the following event is mutually exclusive or not mutually exclusive.

    g. Select a registered voter: The voter is a Republican, and the voter is a Democrat.

    a.

    mutually exclusive

    b.

    not mutually exclusive

 

Question 21

  1.  

    Please put answer in reduced fraction form. Ex. 6/7

    In a fish tank, there are 24 goldfish, 2 angel fish, and 5 guppies. If a fish is selected at random, find the probability that it is a goldfish or an angel fish. 

 

Question 22

  1.  
    Please put answer in fraction form. Ex. 6/7

    An automobile dealer has 10 Fords, 7 Buicks, and 5 Plymouths on his used-car lot. If a person purchases a used car, find the probability that it is a Ford or a Buick. 

 

Question 23

  1.  

    Please put your answer in decimal form. Ex. .38

    The probability that a given tourist goes to the amusement park is 0.47, and the probability that she goes to the water park is 0.58. If the probability that she goes to either the water park or the amusement park is 0.95, what is the probability that she visits both of the parks on vacation? 

 

Question 24

  1.  
    Please put your answer in fraction form, fully reduced. Ex. 5/6

    In a recent study, the following data were obtained in response to the question, "Do you favor the proposal of the school's combining the elementary and middle school students in one building?"

     

    Gender Yes No No Opinion
    Males 72 81 5
    Females 103 68 7

    If a person is selected at random, what is the probability the person is a male or is against the issue. 

 

Question 25

  1.  
    Please put your answer in fraction form, fully reduced. Ex. 5/6

    In a recent study, the following data were obtained in response to the question, "Do you favor the proposal of the school's combining the elementary and middle school students in one building?"

     

    Gender Yes No No Opinion
    Males 72 81 5
    Females 103 68 7

    If a person is selected at random, what is the probability that the person is a female or favors the issue. 

 

Question 26

  1.  

    Please put your answer in decimal form using three decimal places. Ex. .957
    See text for table.

      Male Female
    Age 19 and under 4746 4517
    Age 20 1625 1553
    Age 21 1679 1627

    b. If a driver is chosen at random, find the probability that the driver is age 20 or female

 

Question 27

  1.  

    Please put your answer in decimal form using three decimal places. Ex. .957

    See text for table.

      Male Female
    Age 19 and under 4746 4517
    Age 20 1625 1553
    Age 21 1679 1627

    c. If a driver is selected at random find the probability that the driver is at least 20 years old. 

 

Question 28

  1.  
    What is the difference between independent and dependent events? Give an example of each.
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Question 29

  1.  

    If 37% of high school students said that they exercise regularly, find the probability that 5 randomly selected high school students will say that they exercise regularly.

    Please put your answer in decimal form, round to three decimal digits, ex. .011. 

 

Question 30

  1.  

    A flashlight has six batteries, two of which are defective. If two are selected at random without replacement, find the probability that both are defective.

    Please put your answer in reduced fraction form, ex. 5/7 

 

Question 31

  1.  

    In a scientific study there are eight guinea pigs, five of which are pregnant. If three are selected at random without replacement, find the probability that all are pregnant.

    Please put your answer in reduced fraction form, ex. 5/7 

 

Question 32

  1.  

    At the Avonlea Country Club, .73 of the members play bridge and swim, and .82 play bridge. If a member is selected at random, find the probability that the member swims, given that the member plays bridge.

    Please put your answer in decimal form, round to two places, ex. .45 

 

Question 33

  1.  

    At a local university 54.3% (.543) of incoming freshman have computers. If 3 students are selected at random, find the following probability: a. None have computers.

    Please put your answer in decimal form using three decimal places. Ex. .957

 

Question 34

  1.  

    At a local university 54.3% (.543) of incoming freshman have computers. If 3 students are selected at random, find the following probability: b. At least one has a computer.

    Please put your answer in decimal form using three decimal places. Ex. .957

 

Question 35

  1.  
    A study of graduates' average grades and degrees showed the following results.

     

    Degree C B A
    B.S. 5 8 15
    B.A. 7 12 8

    If a graduate is selected at random, find this probability:

    The graduate has a B.S. degree, given that he or she has an A average.

    Please put your answer in reduced fraction form, ex. 5/7 

 

Question 36

  1.  
    A study of graduates' average grades and degrees showed the following results.

     

    Degree C B A
    B.S. 5 8 15
    B.A. 7 12 8

    If a graduate is selected at random, find this probability:

    Given that the graduate has a B.A. degree, the graduate has a C average.

    Please put your answer in reduced fraction form, ex. 5/7 

 

Question 37

  1.  
    There are five chemistry instructors and six physics instructors at a college. If a committee of four instructors is selected, find the probability of at least one of them being a physics instructor.

    Please answer in reduced fraction form, ex. 5/7 

 

Question 38

  1.  
    A carpool contains three kindergartners and five first-graders. If two children are ill, find the probability that at least one of them is a kindergartner.

    Please answer in reduced fraction form, ex. 5/7 

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