A telemarketing firm is monitoring the performance of its employees based on the number of sales per hour. One employee had the following sales for the last 20 hours

9 5 2 6 5 6 4 4 4 7

4 4 7 8 4 4 5 5 4 8

(i) The median for the distribution of number of sales per hour is 5 sales per hour.

(ii) The first quartile for the distribution of number of sales per hour is 4 sales per hour.

(iii) For the distribution of number of sales per hour, 50% of the observations are between 4 and 6.5.

Multiple Choice

A.(i) and, (iii) are correct statements but not (ii).

B.(i), (ii) and (iii) are all correct statements

C.(ii) and (iii) are correct statements, but not (i).

D.(i) and, (ii) are correct statements but not (iii).

E.(i), (ii) and (iii) are all false statements.