Exam 2: Frequency and Probability Distributions
Exam 1: Introduction and Mathematical Preliminaries146 Questions
Exam 2: Frequency and Probability Distributions150 Questions
Exam 3: Measures of Central Tendency and Variability154 Questions
Exam 4: Percentiles,percentile Ranks,standard Scores,and the Normal Distribution176 Questions
Exam 5: Pearson Correlation and Regression: Descriptive Aspects152 Questions
Exam 6: Probability149 Questions
Exam 7: Estimation and Sampling Distributions151 Questions
Exam 8: Hypothesis Testing: Inferences About a Single Mean160 Questions
Exam 9: Principles of Research Design and Statistical Preliminaries for Analyzing Bivariate Relationships150 Questions
Exam 10: Independent Groups T-Test149 Questions
Exam 12: One-Way Repeated Measures Analysis of Variance140 Questions
Exam 13: Pearson Correlation and Regression: Inferential Aspects143 Questions
Exam 14: Chi-Square Test145 Questions
Exam 15: Nonparametric Statistics135 Questions
Exam 16: Two-Way Between-Subjects Analysis of Variance117 Questions
Exam 17: Overview and Extension: Statistical Tests for More Complex Designs124 Questions
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One should always report at least 10 groups in a grouped frequency distribution.
(True/False)
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Below is a frequency distribution of the number of days absent from school in a group of 25 fifth-grade students.
What percentage of students were absent for 4 days?

(Multiple Choice)
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Dr.Jones is studying the effects of caffeine on recall.She has collected data from 20 students.needs
a.Calculate the relative frequency,cumulative frequency and cumulative relative frequency for the distribution.
b.What is the relative frequency associated with a score of 9 on the recall test?
c.What is the cumulative relative frequency associated with a score of 6?
d.What is the cumulative frequency for the score of 3?
e.Now draw a frequency histogram of the data set above.

(Essay)
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In a frequency histogram,the horizontal dimension is called the _____,and the vertical dimension is called the _____.
(Multiple Choice)
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An outlier is a case or set of cases that shows an average score relative to the majority of cases in the data set.
(True/False)
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