Boxplot - Study guides, Class notes & Summaries
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WGU C955 PROBABILITY AND STATISTICS
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Boxplot - Answer- an image that has min, Q1, median, Q3, max 
 
Histogram - Answer- A graphical representation -- bars, measuring the frequency within each interval 
 
Skewed right - Answer- Not a symmetric distribution, the tail is on the right, i.e. extra stuff on the right 
 
Measures of center - Answer- Median, the mean (and mode) 
 
Measures of spread - Answer- Range, IQR & standard deviation 
 
Standard Deviation Rule - Answer- 68% of the data are within 1 standard deviation,
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Green Packet MC Questions and Answers Already Passed
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Green Packet MC Questions and 
Answers Already Passed 
 
Of the following dotplots, which represents the set of data that has the greatest standard 
deviation? B 
 
split in half 
 
A random sample of 374 United States pennies was collected, and the age of each penny was 
determined. According to the boxplot below, what is the approximate interquartile range (IQR) 
of the ages? 
graph 
 
A 
8 
 
B 
10 
 
C 
16 
 
D 
40 
 
E 
 
50 C 
 
16 
 
graph 
 
The histogram above shows the number of minute...
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STAT 250 GMU EXAM 1 QUESTIONS AND ANSWERS 100% PASS
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STAT 250 GMU EXAM 1 QUESTIONS 
AND ANSWERS 100% PASS 
 
2 main components of categorical distribution -Mode (typical/ most frequent outcome) 
-Variability (or diversity in outcomes) 
 
Appropriate graphs for Categorical data -Pie chart 
-Bar graph 
 
Appropriate graphs for Numerical data -Dotplot 
-Histogram 
-Stemplot 
 
Appropriate measures of center & spread for SKEWED distributions Center- Median 
Spread- Interquartile Range 
 
(The median is not affected by outliers and its value doess not ...
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BSAN 160 Exam Review All Correct (A+ Graded)
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T or F:Decision support system are computer-based support systems that integrate individuals' expertise and computer capabilities, and they have precise definitions agreed to by practitioners. - correct answers False 
 
Business Intelligence (BI) - correct answers is an umbrella term that combines architectures, databases, analytical tools, applications, and methodologies 
 
T or F: Data is a collection of observations, experiments, and experiences that do not necessarily represent absolute fac...
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green packet MC Correctly Answered Questions | UpToDate | Already Graded A+
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Of the following dotplots, which represents the set of data that has the greatest standard 
deviation? 
: B 
split in half 
A random sample of 374 United States pennies was collected, and the age of each 
penny was determined. According to the boxplot below, what is the approximate 
interquartile range (IQR) of the ages? 
graph 
A 
8 
B 
10 
C 
16 
2 | P a g e 
D 
40 
E 
50 
: C 
16 
graph 
The histogram above shows the number of minutes needed by 45 students to finish 
playing a computer ga...
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Probability and Statistics, WGU C955 Questions and Answers (Graded A)
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Probability and Statistics, WGU C955 Questions and Answers (Graded A) 
 
 
Probability and Statistics, WGU C955 Questions and Answers (Graded A) 
 
 
Probability and Statistics, WGU C955 Questions and Answers (Graded A)Boxplot - ANSWER-an image that has min, Q1, median, Q3, max 
 
Histogram - ANSWER-A graphical representation -- bars, measuring the frequency within each interval 
 
Skewed right - ANSWER-Not a symmetric distribution, the tail is on the right, i.e. extra stuff on the right 
 
Meas...
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Introduction to Statistics Notes Latest Verified Review 2023 Practice Questions and Answers for Exam Preparation, 100% Correct with Explanations, Highly Recommended, Download to Score A+
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Introduction to Statistics Notes Latest Verified Review 2023 Practice Questions and Answers for Exam Preparation, 100% Correct with Explanations, Highly Recommended, Download to Score A+ 
Covers basic graphs and descriptive statistics for both categorical and quantitative variables 
This is what you would do as a “preliminary analysis” for a variable. 
 
Recall: a data set can have multiple variables in it. 
 
These chapters focus on mostly univariate (single variable) analyses. There is on...
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Statistics final wgu academy exam questions and answers
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Statistics final wgu academy exam questions and answers 
Categorical variables that there is no natural order among the categories 
nominal variables 
 
 
Categorical variables where there is natural order among the categories (low-high) 
ordinal variable 
 
 
A measurement which makes sense to talk about the difference between values but not the ratio between values 
interval 
 
 
Quantitive variables where is makes sense to talk about the difference in ratios. (Income, weight) 
ratio 
 
 
Valu...
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STA 2023 Test 1 GRADED A+ (ACTUAL TEST ) Questions and Answers (Solved)
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STA 2023 Test 1 GRADED A+ (ACTUAL TEST ) Questions and Answers (Solved) 
1. interquartile range (IQR) 
Answer: Q3 Q1 
2. outlier n a modified boxplot 
Answer: above Q3, by an amount greater than 1.5 × IQRor below 
Q1, by an amount greater than 1.5 × IQR. 
3. modified boxplot 
Answer: regular boxplot constructed with these modifications: 
1.) A special symbol (such as an asterisk or point) is used to 
identify outliers asdefined above 
2.) the solid horizontal line extends only as far as the...
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MATH302 Week 2 Test
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1.	Question: An instructor wants to compare spread (variation) of final grades of students in her online class and face-to-face class. The instructor selects 10 students randomly from each class and the following table shows the final grades of those students. See Attached Excel for Data. 
2.	Question: The lengths (in kilometers) of rivers on the South Island of New Zealand that flow to the Tasman Sea are listed below. Find the variance. See Attached Excel for Data. Use the Excel function to fin...
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