Elementary Statistics Final
Exam 2026 | Study Guide,
Practice Questions &
Answers
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success|
Updated 2026 Questions and Answers
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Rationales
Included
, Z-score When a data value is converted to a standardized scale representing the number
of standard deviations the data value lies from the mean, we call the new value a
____________________.
s The symbol for sample standard deviation is __________________.
Degrees of Freedom Degrees of Freedom Number of data points that are free to vary based on the
person who is responding (ex: mood that day, etc.; gender is the same every day)
Population Population The entire collection of individuals for about which information is
sought.
Sample A subset of a population containing individuals who are actually observed.
Simple Random Sample Every sample of size n has the same chance of be being chosen (selected).
Cluster Sampling Items are drawn from the population in groups or clusters.
Systematic Sampling The population items are ordered in a list then every Kth item is sampled.
Voluntary Response Samples (self-selected sample) When people choose to participate in the sample, usually only people with
strong opinions choose to participate.
lower class limit the least number that can belong to a class
upper class limit the least number that can belong to a class
class width ________________ is found by subtracting a lower class limit from the next consecutive
lower class limit.
range the difference between the maximum data entry and the minimum data value
census ____________ is NOT a measure of center
data collection of observations, measurements, gender or survey responses single
data.
measure of center A value at the center or middle of a data set is a(n) ______________________.
compound event A ____________________ is any event combining two or more simple events.
"Always true" In a symmetric and bell-shaped distribution, the mean, median, and mode are the
same.
voluntary response sample (self-selected sample) is one in which the respondents themselves decide whether to be included.
parameter is a numerical measurement describing some characteristic of a population
unusual A data value is considered ______________ if its z-score is less than -2 or greater than 2.
Exam 2026 | Study Guide,
Practice Questions &
Answers
|Graded A+ | Guaranteed
success|
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive
Rationales
Included
, Z-score When a data value is converted to a standardized scale representing the number
of standard deviations the data value lies from the mean, we call the new value a
____________________.
s The symbol for sample standard deviation is __________________.
Degrees of Freedom Degrees of Freedom Number of data points that are free to vary based on the
person who is responding (ex: mood that day, etc.; gender is the same every day)
Population Population The entire collection of individuals for about which information is
sought.
Sample A subset of a population containing individuals who are actually observed.
Simple Random Sample Every sample of size n has the same chance of be being chosen (selected).
Cluster Sampling Items are drawn from the population in groups or clusters.
Systematic Sampling The population items are ordered in a list then every Kth item is sampled.
Voluntary Response Samples (self-selected sample) When people choose to participate in the sample, usually only people with
strong opinions choose to participate.
lower class limit the least number that can belong to a class
upper class limit the least number that can belong to a class
class width ________________ is found by subtracting a lower class limit from the next consecutive
lower class limit.
range the difference between the maximum data entry and the minimum data value
census ____________ is NOT a measure of center
data collection of observations, measurements, gender or survey responses single
data.
measure of center A value at the center or middle of a data set is a(n) ______________________.
compound event A ____________________ is any event combining two or more simple events.
"Always true" In a symmetric and bell-shaped distribution, the mean, median, and mode are the
same.
voluntary response sample (self-selected sample) is one in which the respondents themselves decide whether to be included.
parameter is a numerical measurement describing some characteristic of a population
unusual A data value is considered ______________ if its z-score is less than -2 or greater than 2.
