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MATH 1280 Self - Quiz Unit 2– University of the People| MATH1280 Self - Quiz Version 2– ( Graded A)
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MATH 1280 Self - Quiz Unit 2– 
University of the People 
Information text 
The next two questions refer to the following relative frequency table on hurricanes that 
have made direct hits on the U.S. between 1851 and 2004. Hurricanes are given a 
strength category rating based on the minimum wind speed generated by the storm. 
Frequency of Hurricane Direct Hits 
Category # Direct Hits Relative Freq. Cum. Relative Freq. 
1 0.39930 0.3993 
2 72 
3 0.2601 
4 0.0659 
5 0.0110 1.0000 
Question 1 Co...
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MATH 1280 Practice Milestone UNIT 1 Introduction to Statistics (2020) | MATH1280 Practice Module UNIT 1 Introduction to Statistics (2020)– ( A Grade)
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MATH 1280 Practice Milestone UNIT 1 Introduction 
to Statistics (2020) – University of the People 
Which of the following data types will be continuous? 
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Number of cars produced by a car company in a year 
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Number of skyscrapers in a city 
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Number of correct answers on a ten-question true/false test 
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Weight of a baby whale 
RATIONALE 
For data to be continuous, it means it can take on any value inside of an interval. Since 
the weight of a baby whale can take on any numeri...
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MATH 1280 Milestone 1_Introduction to Statistics (2020) ( A Grade)-MATH 1280 Milestone 4MATH 1280 Milestone 1_Introduction to Statistics (2020) – ( A Grade)_Introduction to Statistics (2020)
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MATH 1280 Milestone 1_Introduction to Statistics (2020) – ( A Grade)
MATH 1280 Milestone 3_Introduction to Statistics (2020) – ( A Grade)
MATH 1280 Milestone 4_Introduction to Statistics (2020) – ( A Grade)
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MATH 1280 Milestone 4_Introduction to Statistics (2020) | MATH1280 Milestone 4_Introduction to Statistics (2020) – ( A Grade)
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MATH 1280 Milestone 4_Introduction to Statistics 
(2020) – University of the People 
Which statement about correlation is FALSE? 
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The correlation of a data set can be positive, negative, or 0. 
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Correlation between the variables of the data set can be measured. 
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Correlation is the degree to which the two variables of a data set resemble each other. 
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Correlation is used to define the variables of only non-linearly related data 
sets. 
RATIONALE 
Recall that correlation is ...
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MATH 1280 Milestone 3_Introduction to Statistics (2020) | MATH1280 Module 3_Introduction to Statistics (2020)– University of the People ( A Grade)
- Exam (elaborations) • 27 pages • 2021
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MATH 1280 Milestone 3_Introduction to Statistics 
(2020) – University of the People 
Tracie spins the four-colored spinner shown below. She records the total number of 
times the spinner lands on the color red and constructs a graph to visualize her results. 
Which of the following statements is TRUE? 
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If Tracie spins the spinner 1,000 times, it would land on red close to 250 
times. 
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If Tracie spins the spinner 1,000 times, the relative frequency of it landing on red will 
remain...
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MATH 1280 Milestone 1_Introduction to Statistics (2020) | MATH1280 Module 1_Introduction to Statistics (2020) – University of the People( A Grade)
- Exam (elaborations) • 22 pages • 2021
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1 
MATH 1280 Milestone 1_Introduction to Statistics (2020) 
– University of the People 
The administrator of a hospital conducted a survey among patients in the cardiology 
wing to determine service levels of the nursing staff in the hospital. 
Which of the following explains how the results of the survey could be 
biased? 
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The sample does not include the doctors of the hospital. 
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The sample does not include all the patients in the hospital. 
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The sample does not include the boar...
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MATH 1280 Graded Exam Unit 8 test questions only (2020) | MATH1280 Graded Exam Version 8 test questions only (2020) – ( A Grade)
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MATH 1280 Graded Exam Unit 8 test questions only 
(2020) – University of the people 
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Recall that the population average of the heights in the file "" is μ = 170.035. 
Using simulations we found that the probability of the sample average of the height 
falling within 1 centimeter of the population average is approximately equal to 0.626. 
From the simulations we also got that the standard deviation of the sample average is 
(approximately) equal to...
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MATH 1280 Self-Quiz Unit 7 (100%) |MATH1280 Self-Quiz Unit 7 (100%) – University of the People ( Download to Score A+)
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MATH 1280 Self-Quiz Unit 7 (100%) – University of the People 
Grade	10.00 out of 10.00 (100%) 
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Recall that the population average of the heights in the file "" is μ = 170.035. Using simulation it can be shown that the probability of the sample average of the height falling within 2 centimeter of the population average is approximately equal to 0.925. From the simulations we also got that the standard deviation of the sample average is (approximately) equal to 1.122. In the...
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MATH 1280 Self-Quiz Unit 3 |MATH1280 Self-Quiz Module 3 (100%) – University of the People
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MATH 1280 Self-Quiz Unit 3 (100%) – University of the People 
 
 
Grade	10.00 out of 10.00 (100%) 
 
Question 1 Correct 
Question text 
In Figure A you will find box plots for three sets of data. In Figure B are the histograms for the same sets of data, but in a different order. Associate each box plot with its relative histogram. 
 Figure A: 
 
 
 
Figure B:
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