Boxplot and outlier Study guides, Class notes & Summaries

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...

What is a dotplot? - ANSWER-A graphical display which shows "dots" for each point. It's good for categorical data- ie data classified into categories. What's the difference between categorical and quantitative data? - ANSWER-Categorical data fits into various categories; whereas, quantitative data has numerical values associated with it. What is a bar chart? - ANSWER-A display for categorical data which indicates frequencies or percents for each category. What are histograms? - ANSW...

1. What is the purpose of measures of central tendency? a. to find the most typical value of a distribution of scores b. to find the most surprising value of a distribution of scores c. to find the most significant value of a distribution of scores d. to find the most important value of a distribution of scores ANSWER: a 2. Which of these statements describes the three commonly used measures of central tendency (mode, median, and mean)? a. They define “typical” or...

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...

All quizzes statistics inference – 1281. Self-quiz unit one Started on Tuesday, 12 April 2022, 2:32 PM State Finished Completed on Tuesday, 12 April 2022, 2:35 PM Time taken 3 mins 1 sec Grade 10.00 out of 10.00 (100%) Information Flag question Information text The data set "" was introduced in Chapter 9 of the book. This data set contains information on various models of cars. Download this file to your computer and store it in the working directory of R. The file can be downloaded from MAT...

Statistics final wgu academy exam questions and answers Categorical variables that there is no natural order among the categories - Answer- nominal variables Categorical variables where there is natural order among the categories (low-high) - Answer- ordinal variable A measurement which makes sense to talk about the difference between values but not the ratio between values - Answer- interval Quantitive variables where is makes sense to talk about the difference in ratios. (Income, weig...

data - ANSWER-Pieces of information about individuals organized into variables individual - ANSWER-A particular person or object, sometimes called a unit variable - ANSWER-A particular characteristic of the individual dataset - ANSWER-A set of data identified with particular circumstances sample size - ANSWER-The number of individuals quantitative variables - ANSWER-Variables that take numerical values, and represent some kind of measurement (Ex: Age, weight, height...) categor...

Exam (elaborations) TEST BANK FOR Data Mining Concepts and Techniques 2nd Edition By Jiawei Han, Micheline Kamber (Solution Manual) Data Mining: Concepts and Techniques 2nd Edition Solution Manual Jiawei Han and Micheline Kamber The University of Illinois at Urbana-Champaign °c Morgan Kaufmann, 2006 Note: For Instructors' reference only. Do not copy! Do not distribute! Contents 1 Introduction 3 1.11 Exercises . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

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...

WGU STatistics Test nominal variables - ANS Categorical variables that there is no natural order among the categories ordinal variable - ANS Categorical variables where there is natural order among the categories (low-high) interval - ANS A measurement which makes sense to talk about the difference between values but not the ratio between values ratio - ANS Quantitive variables where is makes sense to talk about the difference in ratios. (Income, weigh...