Iqr q3 q1 - Study guides, Class notes & Summaries

5 number summary and box plots - maximum Q3 median Q1 minimum outliers not based on zscore but IQR range (more than 1.5 IQR below Q1)*** A data set consists of all businesses in Tempe that accept Discover Card branded credit cards. The variables in the data set are the total amount of purchases using Discover Card credit cards and how many purchases were made using the card and all the data are for the year 2008. T/F: The data in this data set constitute a cross section, i.e., they are ...

PEARSON EDEXCEL LEVEL 3 GCE MATHEMATICS ADVANCED SUBSIDIARY PAPER 2: STATIATICS AND MECHANICS APPROVED 2024 EXAM WITH ACCURATE QUESTIONS AND ANSWERS. (100% COMPLETE EXAM) VERIFIED MARKINGSCHEME ( CHECK SECTION 2) Candidates may use any calculator permitted by Pearson regulations. Calculators must not have the facility for algebraic manipulation, differentiation and integration, or have retrievable mathematical formulae stored in them. ...

WGU C784 Applied Healthcare Statistics Exam (New 2023/ 2024 Update) | Questions and Verified Answers| 100% Correct| Grade A QUESTION How do you find the IQR of data? Answer: IQR (interquartile range) is the distance (difference) between Q3 and Q1 (so Q3-Q1) QUESTION What is in a 5-number summary? Answer: min, Q1, median, Q3, max QUESTION What percentage is a standard deviation of 1? Answer: 68% QUESTION What percentage is a standard deviation...

WGU C955 Probability and Statistics (2022/2023) Already Passed Boxplot an image that has min, Q1, median, Q3, max Histogram A graphical representation -- bars, measuring the frequency within each interval Skewed right Not a symmetric distribution, the tail is on the right, i.e. extra stuff on the right Measures of center Median, the mean (and mode) Measures of spread Range, IQR & standard deviation Standard Deviation Rule 68% of the data are within 1 standard deviation, 95% are within 2, 99...

Straighterline Introduction to Statistics questions with complete solutions 2023Four steps in the process of statistics 1. Producing Data 2. Exploratory Data Analysis 3. Probability 4. Inference Categorical variable places individuals into one of several groups Two types: nominal and ordinal Quantitative Variable represents a measurement or a count Two types: Interval and ratio Nominal Variable categorical variables where there is no natural order among the categori...

AP Statistics UPDATED ACTUAL Questions and CORRECT Answers How do you check if there is outliers? - CORRECT ANSWER - calculate IQR; anything above Q3+1.5(IQR) or below Q1-1.5(IQR) is an outlier If a graph is skewed, should we calculate the median or the mean? Why? - CORRECT ANSWER - median; it is resistant to skews and outliers

Pie chart numerical measure: percentages best used When displaying categories as parts of the whole Bar chart (bar graph) Category counts or frequencies best used when displaying counts or frequencies for each category individually Dot Plot 5-number summary (max, Q1, median, Q3, max) Smaller data set; useful to display the distribution and show gaps and outliers (quantitative) Stem Plot (stem-and-leaf plot) 5-number summary (max, Q1, median, Q3, max) Smaller data sets; useful to disp...

WGU C784 Applied Healthcare Statistics Exam Review (New 2023/ 2024 Update) | Questions and Verified Answers| 100% Correct| Grade A QUESTION Must know these conversions- Answer: 1Kg - 2.2lb 1000 mcg = 1 mg 1000 mg = 1 g 1000 g = 1 kg QUESTION Know this conversion temperature Celsius to Fahrenheit and vice versa Answer: C = (F-32) / 1.8 F = (C x 1.8) + 32 QUESTION IS in math means = OF in Math mean Multiply (x) Answer: KNOW THIS QUESTION SL...

Marginal Distribution correct answer: The distribution of values of a variable among all individuals described by the table. (Percent of something out of the total) Conditional Distribution correct answer: The distribution of values of a variable among individuals who have a specific value of another variable. (Percent of a specific something out of that specific total) Association correct answer: When specific values of one variable tend to occur in common with specific values of anoth...

How do you check if there is outliers?calculate IQR; anything above Q3+1.5(IQR) or below Q1-1.5(IQR) is an outlier If a graph is skewed, should we calculate the median or the mean? Why?median; it is resistant to skews and outliers If a graph is roughly symmetrical, should we calculate the median or the mean? Why?mean; generally is more accurate if the data has no outliers What is in the five number summary?Minimum, Q1, Median, Q3, Maximum Relationship between variance and standard devia...