'Interquartile range' diaporamas de présentation

Chapter 3. Numerical Methods for Describing Data Distributions. Created by Kathy Fritz. Suppose that you have just received your score on an exam in one of your classes. What would you want to know about the distribution of scores for this exam? Measures of center Measures of spread.

Analyzing Survey Data. Angelina Hill, Associate Director of Academic Assessment 2009 Academic Assessment Workshop May 14 th & 15 th UNLV. Prior to Analysis. What would you like to discover? Perceived competence Preferences, satisfaction Group differences Demographics

Review of Previous Lecture. Range The difference between the largest and smallest values Interquartile range The difference between the 25th and 75th percentiles Variance The sum of squares divided by the population size or the sample size minus one Standard deviation

Introduction to ocean color satellite calibration. NASA Ocean Biology Processing Group Goddard Space Flight Center, Greenbelt, Maryland, USA SeaDAS Training Material. Ocean color calibration. scope of the calibration paradigm:

Chapter Four. Goals. Describing Data: Displaying and Exploring Data. GOALS When you have completed this chapter, you will be able to:. ONE Develop and interpret a dot plot. TWO Develop and interpret a stem-and-leaf display. THREE Compute and interpret quartiles, deciles, and percentiles.

Paying for Pharmaceutical Regulation. Warren Kaplan Richard Laing Boston University School of Public Health. http://heapol.oupjournals.org/cgi/reprint/18/3/237.pdf. ABSTRACT. We analysed DRA new drug registration fees for 34 countries

Quality control of daily data on example of Central European series of air temperature, relative humidity and precipitation. P. Štěpánek (1), P. Zahradn íč ek (1). (1) Czech Hydrometeorological Institute, Regional Office Brno, Czech Republic,. E-mail: petr.stepanek@chmi.cz.

Business Research Methods William G. Zikmund. Chapter 20: Basic Data Analysis: Descriptive Statistics . Descriptive Analysis.

The standard deviation is just the square root of the variance. Measures of Variation. As well as the Central Tendency of the data in a population or sample a second important characteristic of the data is it variability about some center. . Measures of Variation include: The range

GCRC Research-Skills Workshop. October 10, 2003. How to use the PS sample size software for advanced applications. ****************. William D. Dupont Department of Biostatistics. ****************. Follow-up time. Fate at exit. Statistic: Log-rank test.

Example The frequency table shows the examination marks of 80 students. . Cumulative frequency. Draw a cumulative frequency table and cumulative frequency curve to represent this data. Find the median and interquartile range for this data. . Example

Physical Counterpressure Maneuver (PC) Trial. Presented at The American College of Cardiology Scientific Session 2006 Presented by Dr. N. van Dijk. PC-Trial: Background.

Statistics for Non-Statisticians. Kay M. Larholt, Sc.D. Vice President, Biometrics & Clinical Operations Abt Bio-Pharma Solutions. Topics. Basic Statistical Concepts 2) Study Design 3) Blinding and Randomization 4) Hypothesis testing 5) Power and Sample Size. Basic Statistical Concepts.

Introduction to ocean color satellite calibration. NASA Ocean Biology Processing Group Goddard Space Flight Center, Greenbelt, Maryland, USA SeaDAS Training Material. Ocean color calibration. scope of the calibration paradigm:

Chapter 2. Descriptive Statistics. Measures of Position. § 2.5. Quartiles. Median. Q 1. Q 2. Q 3. 0. 25. 50. 75. 100. Q 3 is the median of the data above Q 2 . Q 1 is the median of the data below Q 2 .

Collaborative Atorvastatin Diabetes Study (CARDS). Atorvastatin 10 mg (n=1428). Patient Population. Type 2 diabetes mellitus Men and women 40–75 years of age Primary CHD and stroke prevention LDL-C  160 mg/dL (  4.14 mmol/L) TG  600 mg/dL (  6.78 mmol/L)  1 additional RF

Review for Final Exam. GEOG090 - Quantiative Methods in Geography Spring 2006. GEOG 090 – Quantitative Methods in Geography. The Scientific Method Exploratory methods (descriptive statistics) Confirmatory methods (inferential statistics) Mathematical Notation Summation notation

Measures of Spread. Measures of Center. Range Inter-quartile Range Variance Standard deviation. Mode Median Mean. *. *. *. Measures of Symmetry. Measures of Position. Skewness. Percentile Deviation Score Z-score. *. *. Descriptive Statistics: Overview. Central tendency.

Section 1.2 Part 1. AP Statistics September 9, 2008 CASA. Describing Distributions with Numbers: Center/Mean. The Mean The Average The Arithmetical Mean The mean is not a resistance measure of center. Describing Distributions with Numbers: Center/Median.