Stat 1000 (University of Manitoba) Exam Questions
With Complete Answers
Data - ANSWER A set of measurements or observations on a group of objects.
Variable - ANSWER A characteristic or property of an individual
Sample - ANSWER A subset of units in a population that we examine in order to gather
information about the population
Distribution - ANSWER Tells us what values it takes and how often it takes these values
Range - ANSWER The maximum minus the minimum data value, as a measure of spread.
Trend - ANSWER Time series with a persistent long term rise or fall
Seasonal Variation - ANSWER A pattern that repeats itself at certain intervals
Outlier - ANSWER A point that falls far away from the data
IQR and what amount of data does it cover - ANSWER The measure of spread or
variability. It covers the middle 50%.
, Standard Deviation - ANSWER Is the square root of the "average" squared deviation
from the means.
Variance - ANSWER It is the square of the standard deviation
Response Variable (also known as?) - ANSWER Measures the outcome of the study
(dependent)
Explanatory Variable - ANSWER Attempts to explain the observed outcome of the study.
(independent)
Scatterplot - ANSWER Graph used to look at relationships between 2 quantitative
variables
Correlation - ANSWER Statistical Measurement of relationship between two quantitative
variables.
Regression Line - ANSWER Summarizes the relationship between two variables only
when one of the variables help predict or explain the other
Slope - ANSWER For every one unit increase in the explanatory variable, the predicted
response will increase/decrease by value of B1
With Complete Answers
Data - ANSWER A set of measurements or observations on a group of objects.
Variable - ANSWER A characteristic or property of an individual
Sample - ANSWER A subset of units in a population that we examine in order to gather
information about the population
Distribution - ANSWER Tells us what values it takes and how often it takes these values
Range - ANSWER The maximum minus the minimum data value, as a measure of spread.
Trend - ANSWER Time series with a persistent long term rise or fall
Seasonal Variation - ANSWER A pattern that repeats itself at certain intervals
Outlier - ANSWER A point that falls far away from the data
IQR and what amount of data does it cover - ANSWER The measure of spread or
variability. It covers the middle 50%.
, Standard Deviation - ANSWER Is the square root of the "average" squared deviation
from the means.
Variance - ANSWER It is the square of the standard deviation
Response Variable (also known as?) - ANSWER Measures the outcome of the study
(dependent)
Explanatory Variable - ANSWER Attempts to explain the observed outcome of the study.
(independent)
Scatterplot - ANSWER Graph used to look at relationships between 2 quantitative
variables
Correlation - ANSWER Statistical Measurement of relationship between two quantitative
variables.
Regression Line - ANSWER Summarizes the relationship between two variables only
when one of the variables help predict or explain the other
Slope - ANSWER For every one unit increase in the explanatory variable, the predicted
response will increase/decrease by value of B1
