A. Dispersion/ Variability
B. Measurement error
C. Random error
D. Instrument error
A. Given value
B. All +ve, -Ve value
C. Zero reject
D. None of these
A. A
B. a E(x)
C. x E(a)
D. Non of these
A. Two reasons
B. Short run
C. Three reasons
D. Natural Sciences
A. A portion of the sample
B. A portion of the population
C. All the items under investigation
D. None of the above
A. Place
B. Yearly
C. Time
D. None
A. the methods to make decisions about population based on sample results
B. how to make decisions about mean, median, or mode
C. how a sample is obtained from a population
D. None of the above