(A) Type-I error
(B) Type-II error
(C) Type-III error
(D) Type-IV error

(A) Statistics in production

(B) Statistics in marketing

(C) Statistics in finance

(D) Statistics in personnel management

(A) Exponential scale

(B) Goodness scale

(C) Ratio scale

(D) Satisfactory scale

(A) Education statistics

(B) Descriptive statistics

(C) Business statistics

(D) Social statistics

(A) Data exporting technique

(B) Data importing technique

(C) Forecasting technique

(D) Data supplying technique

(A) Flowchart variables

(B) Discrete variables

(C) Continuous variables

(D) Measuring variables

(A) Primary data sources

(B) Secondary data sources

(C) Itemised data sources

(D) Pointed data sources

(A) Lowercase Greek letters

(B) Roman letters

(C) Associated Roman alphabets

(D) Uppercase Greek letters

(A) Behavioural tools

(B) Serial tools

(C) Industry statistics

(D) Statistical tools

(A) Descriptive statistics

(B) Inferential statistics

(C) Industry statistics

(D) Both A and B