1. Case 

Question:

a. How many elements are in this data set? (weight 10)

b. How many variables are in this data set? (weight 10)
c. Which variables are categorical and which variables are quantitative? (weight 10)
d. What type of measurement scale is used for each variable? (weight 10)
e. What's the average phone price? (weight 10)
f. What percentage of phones have the best sound quality (very good)? (weight 10)

2. Consider a three-time coin toss attempt.
a. Develop and make a tree diagram for the experiment. (weights 20)
b. List the experimental results. (weight 10)
c. What is the probability for each experimental result? (weight 10)

TABLE 1.7 DATA FOR EIGHT CORDLESS TELEPHONES Overall Score Handset Talk Time (Hours) Brand Model Price (S) Voice Quality on Base 60 73 Excellent Yes No AT&T CL84100 7 Very Good Very Good Very Good Very Good Very Good Excellent AT&T TL92271 4773B 80 70 Panasonic 100 78 Yes 13 13 Panasonic 6592T 70 72 No Uniden D2997 45 70 No 10 73 72 Uniden DI788 80 Yes 7. DS6521 CS6649 Vtech 60 No 7. Vtech 50 72 Very Good Yes TABLE 1.7 DATA FOR EIGHT CORDLESS TELEPHONES Overall Score Handset Talk Time (Hours) Brand Model Price (S) Voice Quality on Base 60 73 Excellent Yes No AT&T CL84100 7 Very Good Very Good Very Good Very Good Very Good Excellent AT&T TL92271 4773B 80 70 Panasonic 100 78 Yes 13 13 Panasonic 6592T 70 72 No Uniden D2997 45 70 No 10 73 72 Uniden DI788 80 Yes 7. DS6521 CS6649 Vtech 60 No 7. Vtech 50 72 Very Good Yes