BSTAT 2025 EXAM QUESTIONS AND 100%
CORRECT ANSWERS!!
The branch of statistical studies called inferential statistics refers to drawing conclusions
about sample data by analyzing the corresponding population.
F
The branch of statistical studies called descriptive statistics summarizes important aspects
of a data set.
T
Sample statistics are used to estimate corresponding population parameters.
T
Cross-sectional data contain values of a characteristic of one subject collected over time.
F
A qualitative variable assumes meaningful numerical values.
F
A discrete variable cannot assume an infinite number of values
F
A continuous variable assumes any value from an interval (or collection of intervals).
T
The mathematical operation of addition can be performed on nominal data.
F
All mathematical operations can be performed on ratio-scaled data.
T
, A scatterplot is a graphical tool that helps determine whether or not two quantitative
variables are related.
T
The terms central location or central tendency refer to the way quantitative data tend to
cluster around some middle or central value.
T
The arithmetic mean is the middle value of a data set.
F
The variance and standard deviation are the most widely used measures of central location.
F
The empirical rule is only applicable for approximately bell-shaped data.
T
Outliers are extreme values above or below the mean that require special consideration.
T
In quality control settings, businesses prefer a larger standard deviation, which is an
indication of more consistency in the process.
F
The recorded body temperature of patients in the group of patients under research study is
an example of time series data.
F
Approximately 60% of the observations in a data set fall below the 60 th percentile.
T
The median is not always the 50 th percentile.
F
CORRECT ANSWERS!!
The branch of statistical studies called inferential statistics refers to drawing conclusions
about sample data by analyzing the corresponding population.
F
The branch of statistical studies called descriptive statistics summarizes important aspects
of a data set.
T
Sample statistics are used to estimate corresponding population parameters.
T
Cross-sectional data contain values of a characteristic of one subject collected over time.
F
A qualitative variable assumes meaningful numerical values.
F
A discrete variable cannot assume an infinite number of values
F
A continuous variable assumes any value from an interval (or collection of intervals).
T
The mathematical operation of addition can be performed on nominal data.
F
All mathematical operations can be performed on ratio-scaled data.
T
, A scatterplot is a graphical tool that helps determine whether or not two quantitative
variables are related.
T
The terms central location or central tendency refer to the way quantitative data tend to
cluster around some middle or central value.
T
The arithmetic mean is the middle value of a data set.
F
The variance and standard deviation are the most widely used measures of central location.
F
The empirical rule is only applicable for approximately bell-shaped data.
T
Outliers are extreme values above or below the mean that require special consideration.
T
In quality control settings, businesses prefer a larger standard deviation, which is an
indication of more consistency in the process.
F
The recorded body temperature of patients in the group of patients under research study is
an example of time series data.
F
Approximately 60% of the observations in a data set fall below the 60 th percentile.
T
The median is not always the 50 th percentile.
F
