STATISTICS BEC1 FILES WGU
COMPREHENSIVE TEST PAPER 2026 FULL
ANSWERS ALL PASSED GRADED A+
⩥ Census. Answer: The collection of data from every member of the
population.
⩥ Representative Sample. Answer: A sample in which the relevant
characteristics of the sample members are generally the same as the
characteristics of the population.
⩥ Two types of statistical studies. Answer: observational
experiment
⩥ Observational study. Answer: Researchers observe or measure
characteristics of the subjects, but do not attempt to influence or modify
these characteristics
⩥ experiment. Answer: Researchers apply some treatment and observe
it's effects on the subject of the experiment
⩥ Population. Answer: In a statistical study is the complete set of people
or things being studied
, ⩥ population parameters. Answer: Are specific numbers describing
characteristics of the population
⩥ Sample. Answer: A subset of the population from which data are
actually obtained
⩥ Raw data. Answer: The actual measurements or observations collected
from the sample
⩥ Sample Statistics. Answer: Are numbers describing characteristics of
the sample found by consolidating or summerizing the raw data
⩥ Margin of error. Answer: Is used to describe the range of values, or
CONFIDENCE INTERVALS, likely to contain the population
parameter.
to find the confidence intervals by adding and subtracting the margin of
error from the sample statistic obtained in the study.
From (sample statistic-margin of error)
(sample statistic+margin of error)
COMPREHENSIVE TEST PAPER 2026 FULL
ANSWERS ALL PASSED GRADED A+
⩥ Census. Answer: The collection of data from every member of the
population.
⩥ Representative Sample. Answer: A sample in which the relevant
characteristics of the sample members are generally the same as the
characteristics of the population.
⩥ Two types of statistical studies. Answer: observational
experiment
⩥ Observational study. Answer: Researchers observe or measure
characteristics of the subjects, but do not attempt to influence or modify
these characteristics
⩥ experiment. Answer: Researchers apply some treatment and observe
it's effects on the subject of the experiment
⩥ Population. Answer: In a statistical study is the complete set of people
or things being studied
, ⩥ population parameters. Answer: Are specific numbers describing
characteristics of the population
⩥ Sample. Answer: A subset of the population from which data are
actually obtained
⩥ Raw data. Answer: The actual measurements or observations collected
from the sample
⩥ Sample Statistics. Answer: Are numbers describing characteristics of
the sample found by consolidating or summerizing the raw data
⩥ Margin of error. Answer: Is used to describe the range of values, or
CONFIDENCE INTERVALS, likely to contain the population
parameter.
to find the confidence intervals by adding and subtracting the margin of
error from the sample statistic obtained in the study.
From (sample statistic-margin of error)
(sample statistic+margin of error)
