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COMM 191 Midterm Prep Practice Questions & Answers

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COMM 191 Midterm Prep Practice Questions & Answers This Practice exam focus on the following- foundational statistical modules: Data Types & Visualization: Distinguishing between categorical and quantitative data; selecting appropriate charts (Pie, Bar, Histograms, Scatterplots).Exploratory Data Analysis: Measures of central tendency (mean, median), variability (standard deviation, variance), and skewness.Probability & Random Variables: Discrete (Binomial) and Continuous (Normal) distributions.Linear Regression: Correlation ((r)), Coefficient of Determination ((R^{2})), and solving for the regression line. Sampling: Identifying sampling techniques (Simple Random, Stratified, Cluster) and recognizing potential biases.

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COMM 191
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Uploaded on
January 3, 2026
Number of pages
85
Written in
2025/2026
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Exam (elaborations)
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Questions & answers

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ALL END OF LECTURE
QUESTIONS ANSWERED !




DEN
COMM191
GULATI

,LESSON2-TYPES OF DATA DATA

VISUALIZATION

,Practice questions
Question: Which type of data is categorical?
- - - -




A) Height
B) Temperature
-
C) Colors
D) Time

, Practice questions
Question: What type of graph is suitable for displaying categorical data?


A) Histogram
-
B) Pie chart
C) Scatter plot
D) Line graph
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