Answer:
The WHO
(A) Dryers
the what
(D) Brand, cost, size, type, estimated annual energy cost, overall rating, repair history.
the When
the data were recorded in 2003 .
The Where
(c) the information is not provided
The Why
(A) to provide information to the magazine's readers.
The how
(B) the dryers were chosen at random
Brand - Categorical
Cost - Quantitative
Size - Quantitative
Type - Categorical
Estimated annual energy cost - Quantitative
Overall Rating - Categorical
Repair History - Quantitative
Units :-
Cost - dollars
Size - cubic foot
Estimated annual energy cost - dollars
Repair history - Percentage