A company's human resource department was interested in the average number of years that a person works before retiring. The sample of size 11 follows: (i) The mode is 21.
(ii. The arithmetic mean is 20.4.
(iii) The median is 23.
A) (i), (ii) and (iii) are all correct statements
B) (i) and (ii) are correct statements but not (iii).
C) (i) and (iii) are correct statements but not (ii).
D) (ii) and (iii) are correct statements, but not (i).
E) (i), (ii) and (iii) are all false statements.

Question

A company's human resource department was interested in the average number of years that a person works before retiring. The sample of size 11 follows:  (i) The mode is 21.
(ii. The arithmetic mean is 20.4.
(iii) The median is 23.
A) (i), (ii) and (iii) are all correct statements 
B) (i) and (ii) are correct statements but not (iii). 
C) (i) and (iii) are correct statements but not (ii). 
D) (ii) and (iii) are correct statements, but not (i). 
E) (i), (ii) and (iii) are all false statements.

Quizplus · Accepted Answer

(i) The mode is 21 which is correct.
(ii) The arithmetic mean is 20.4 which is correct.
(iii) The median is 23 which is incorrect as the middle value in the sorted set is 22. Therefore, (iii) is not a correct statement. Therefore, the correct choice is B.

A Company's Human Resource Department Was Interested in the Average