Learn variance and standard deviation MCQs online, MBA business statistics test for e-learning MBA degree online courses, career test prep. Practice measures of dispersion multiple choice questions (MCQs), 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.

Study bachelor in business administration and MBA degree courses, online business management degree programs MCQs: if total sum of square is 20 and sample variance is 5 then total number of observations are with options 15, 25, 4 and 35 with online eLearning for online competitions like GMAT study test for good GMAT scores. Free skills assessment test is for online learning variance and standard deviation quiz questions with MCQs, exam preparation questions and answers to prepare entrance exam for admission in MBA degree online.

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

1. 15
2. 25
3. 4
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

1. 9500
2. 8000
3. 7014.29
4. 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

1. smaller
2. greater
3. zero
4. negative

B

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

1. undesired error
2. bias
3. non-calculate error
4. 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

1. coefficient of deviation
2. mean variance
3. sample variance
4. population variance

C