__________ does not mean causation. It only means co variation.
Correlation
Mean
Median
Mode
___________ comprises a group of equi spaced and equi width rectangular bars for each class or category of data.
Bar diagram
The ___________ is the middle element when the data set is arranged in order of the magnitude.
Mean deviation
A ___________ is a useful technique for visually examining the form of relationship, without calculating any numerical value.
Scatter diagram
___________ are used for comparing two or more sets of data.
Data
Multiple bar diagram
Variable
Random sampling
__________ are usually used when there is paucity of time, money and man power resources and the information is easily available.
Primary data
Secondary data
Histogram
A ____________, which includes every element of the population is known as census or the method of complete enumeration.
Income
Data collection
Survey
Census
___________ is the value which occurs most frequently.
Index number
A graphic method, which estimates the dispersion from shape of a curve is called
Lorenz curve
__________ is the root of all economic problems.
Scarcity
Distribution
