Exam 2: Frequency Distributions and Graphs
Exam 1: The Nature of Probability and Statistics81 Questions
Exam 2: Frequency Distributions and Graphs107 Questions
Exam 3: Data Description127 Questions
Exam 4: Probability and Counting Rules173 Questions
Exam 5: Discrete Probability Distributions117 Questions
Exam 6: The Normal Distribution114 Questions
Exam 7: Confidence Intervals and Sample Size122 Questions
Exam 8: Hypothesis Testing178 Questions
Exam 9: Testing the Difference Between Two Means, Two Variances, and Two Proportions99 Questions
Exam 10: Correlation and Regression73 Questions
Exam 11: Other Chi-Square Tests73 Questions
Exam 12: Analysis of Variance69 Questions
Exam 13: Nonparametric Statistics62 Questions
Exam 14: Sampling and Simulation58 Questions
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A sample of 200 high school students were asked how many hours per week they spend u television. The following frequency distribution presents the results.
Time Spent Watehing Television Number of hours Frequency 0.0-3.9 61 4.0-7.9 30 8.0-11.9 32 12.0-15.9 20 16.0-19.9 23 20.0-23.9 18 24.0-27.9 16
Construct a frequency ogive for the frequency distribution.
(Multiple Choice)
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When making Pareto charts, data should be arranged according to frequency.
(Multiple Choice)
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If the graph of a frequency distribution has a peak and the data tapers off more
slowly to the right and more quickly to the left, the distribution is said to be
.
(Short Answer)
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State the reason why the following frequency distribution is incorrectly constructed. Class Frequency 33-40 3 41-48 1 49-55 6 56-63 6 64-71 1
(Multiple Choice)
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The following table presents the purchase totals (in dollars) of a random sample of gasolis purchases at a convenience store.
Construct a relative frequency distribution using a class width of 10 , and using 0 as the lo limit for the first class.
44.52 72.67 51.20 59.41 64.86 98.05 80.24 56.18 51.93 46.17 88.08 46.49 24.48 50.26 36.77 27.61 6.56 22.75 36.65 74.55
(Multiple Choice)
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