___________ is an array of frequencies according to variate values,that is to say,a frequency distribution.
Sampling
Classification
Frequency array
Phased array
The ____________ consist of observations on variables.
Survey
Census
Raw data
_______________ is a graphic representation of a frequency distribution.
Frequency curve
Polynominal curve
Geometric curve
Cumulative curve
Variables are classified into __________ types.
Two
Three
Four
Five
A lot of studies involve the use of a ____________.
Discrete variable
Continuous variable
Both 1 & 2
None of these
___________ are particularly useful in summarizing large data sets and assigning problems.
Frequency distribution
A ____________ variable is a kind of statistics variable can only take on discrete specific values.
Continuous
Qualitative
Quantitative
Discrete
_____________ is the organization of raw data in table form,using classes and frequencies.
Skewed distribution
Normal distribution
Cumulative distribution
The class mark is also called
Upper class limit
Lower class limit
Class mid point
_____________ is obtained by joining the points of frequency polygon by a freehand smoothed curve.
Polynomial curve
