For each question, tick the correct answer or answers.

Q1) Among the following tables, which can be analyzed using MCA?
a table from a survey where all questions have qualitative answers
a table where all answers are either yes or no
a table where the replies to every question are either "not at all enough", "not enough", "ok", "too much", "much too much"
a table where we count the number of people who answered two particular questions

Q2) In MCA, the initial data table is the one with the original data, and the complete disjunctive table is the one that factor analysis is performed on. Tick the true statement or statements here.
the initial data table has as many columns as there are variables
the complete disjunctive table has as many columns as there are variables
the complete disjunctive table has as many columns as there are categories (across all variables)
the weighted complete disjunctive table (i.e., the one which we do the analysis on) assigns more importance to categories with few entries

Q3)Let Yik be the values found in the complete disjunctive table (Yik = 1 if the i-th individual is in the k-th category, and Yik = 0 otherwise). Thus, factor analysis is performed on a table X in which
Xik = Yik
Xik = Yik / pk (where pk is the number of individuals in the k-th category)
Xik = Yik / pk -1

Score =
Correct answers: