This document contains a quiz examination for the course STA 240 with 7 multiple choice questions testing concepts related to measures of central tendency, dispersion, coefficient of variation, mean, standard deviation, median, geometric mean, harmonic mean, and mode. The quiz is out of 100 marks with 10 marks allocated to each question and an additional 30 marks. Students have 50 minutes to complete the quiz.

1. INTERNATIONAL UNIVERSITY OF BUSINESS AGRICULTURE AND TECHNOLOGY
Quiz examination
STA 240 Set: X
Full marks: 100 (10x7+30) Time: 50 minutes
1. In what situations, measures of central tendency are not appropriate?
2. What are the measures of dispersion?
3. When should we use coefficient of variation (CV)?
4. Find CV of two numbers 5 and 3.
5. Find CV for the series 1, 2, 3, ………… , 10.
6. If SD of 1st n natural numbers is √10, what will be the mean?
7. Find MD and SD of the numbers 0, 1, 2.
8. For any two numbers, GM=√7 and SD=3.
a) Find the numbers.
b) Find HM.
c) Find MD.
d) Find variance.
e) Find median.
f) Find AM.
g) Find CV.
Md. Mortuza Ahmmed