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EDRM611: Applied Statistics

Homework for Statistics Lesson 7A

Answer Completely.
 
Some calculations are required.
Due Thu., July 21, 2005, 10:30:00.000, EDT.
 
Due on the teacher's desk in BH114.
    Identify the type or types of sampling used for the following.
  1. George went through the telephone book and called every 89th person listed, starting with the 47th person.

     

  2. Four people divided the telephone book evenly and each randomly sampling from their portion.

     

  3. All people with a 461 telephone exchange are called.

     

  4. Every 5th block of 10 students leaving the Eau Claire High School cafeteria on June 31 is exhaustively sampled about their faith in random samples.

     

  5. What four letter word is associated with convenience sampling?

     

  6. Differentiate between prospective and retrospective studies.

     

  7. Give two other names for random sampling.

     

  8. What is an open question?

     


    Assume one fair, green, six-sided die and one fair, red, six-sided die are being rolled in an unbiased manner. Calculate the probabilities for the following compound events. It might help to refer back to the pip total distribution in activity 2 or in Hinkle Figure 7.3.

  9. The total pips on the top faces of the two dies is at least 11.

     

  10. The pips showing on the top faces of the two dies are 5 and 2.

     

  11. The green die has 5 and the red die has 2.

     

  12. The green die has 5 or the red die has 2.

     

  13. Either the green or the red die has a 5 or a 2.

     

    Assume cards are drawn from a normal 52-card deck and ace is low.

  14. What term is used to descibe the act of randomly drawing any one card?

     

  15. What is the cardinality of (how big is) the sample space?

     

  16. Calculate P(the card is a standard playing card).

     

  17. Calculate P(the card is a joker).

     

  18. Calculate P(the card is a king).

     

  19. Scanti Lee Clad has 15 short shorts and 11 sleeveless blouses. In how many different ways could she select a shorts-blouse combination.

     

  20. Lisa visits Pet Refuge and finds 21 dogs and 13 cats she likes. In how many ways could she select either one dog or one cat? In how many ways could she select both one dog and one cat?

     

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