Stats multiple choice from books chapter

1. ___________ is the central value of an array data.

A. Mean
B. median
C. mode
D. Harmonic mean

2. When deviations are taken from median sum of absolute deviation of the value is_______________

A. Zero
B. Minimum
C. Maximum
D. more than zero

3. It is impossible to find ____________ if the values have same numbers in a series.

A. Median
B. mode
C. Mean
D. weighted mean

4. A distribution having two modes is called

A. Symmetrical
B. Bi modal
C. Multi modal
D. uni modal

5. If mode is greater than mean then the distribution is

A. symmetrical
B. positively skewed
C. Negatively Skewed
D. None of these

6. The relation between mean, median and mode for a unimodal distribution is _________________

A. mean >median>mode
B. mean<median<mode
C. Mean=median=mode
D. mean<median>mode

7. Which mean is use for calculating average rate of debt growth for a company ?

A. Arithmetic mean
B. Weighted mean
C. Harmonic mean
D. Geometric mean

 

 

8. Which one from the following average is suitable for qualitative data?

A. Median
B. mode
C. Mean
D. weighted mean

9. for computing mean of a grouped data the major assumption we make is_________

A. All values are discrete
B. No value occurs more than once
C. Each class contains exactly the same number of values
D. Every value in a class is equal to the midpoint

10. By the change of ______________ measures of dispersion are changed.

A. origin
B. scale
C. Algebra Sign
D. none of these

11. When deviations are taken from __________ sum of absolute deviation of the value is least.

A. Median
B. mode
C. Mean
D. weighted mean

12. Which are the most commonly used measures of dispersion in quality control of manufactured items?

A. Mean deviation
B. standard deviation
C. Quartile deviation
D. range