# Variance and Standard Deviation MCQs Quiz Online PDF Download

Learn variance and standard deviation MCQs, business statistics test for learning online courses and test prep to practice. Measures of dispersion quiz has multiple choice questions (MCQ), variance and standard deviation quiz questions and answers, relationship: measures of deviation, classification: measures of dispersion, squared deviation, mean absolute deviation, variance and standard deviation tutorials for online normal distribution courses distance learning.

Business statistics practice test MCQ: if total sum of square is 20 and sample variance is 5 then total number of observations are with choices 15, 25, 4 and 35 problem solving skills for summative and formative assessment, competitive exam prep, interview questions with answer key. Free study guide is for online learning variance and standard deviation quiz with MCQs to practice test questions with answers.

## MCQs on Variance and Standard Deviation Quiz PDF Download

MCQ. If total sum of square is 20 and sample variance is 5 then total number of observations are

- 15
- 25
- 4
- 35

C

MCQ. In manufacturing company, number of employees in unit A is 40, mean is USD $6400 and number of employees in unit B is 30 with mean of Rs. 5500 then combined arithmetic mean is

- 9500
- 8000
- 7014.29
- 6014.29

D

MCQ. If calculated value of total sum of squares in sample variance is larger than variation in data set is considered as

- smaller
- greater
- zero
- negative

B

MCQ. Undesirable consequences which causes estimated population variance to appear less as compared to real results are classified as

- undesired error
- bias
- non-calculate error
- non-zero error

B

MCQ. Formula in which Σ(x-x‾)² is divided by one less than number of observations in sample is classified as

- coefficient of deviation
- mean variance
- sample variance
- population variance

C