# Free short Webinar - Learn Data Science with XLSTAT: Describing data, Apr. 14, 2020

Data analysis tools can be grouped into several categories, each category aiming at answering a certain type of questions associated to a certain type of data. Descriptive statistics allow to summarize information contained in datasets using simple numbers such as the mean or the standard deviation; and charts such as box plots and scatter plots.

This is an elearning free session that lasts one hour. No need to step out of your office to attend!

The class includes a presentation as well as a 10-minute long Q&A session.

#### Describing data - 1 hour

Data analysis tools can be grouped into several categories, each category aiming at answering a certain type of question associated to a certain type of data. Descriptive statistics allow to summarize information contained in datasets using simple numbers such as the mean or the standard deviation; and charts such as box plots and scatter plots. This Webinar presents descriptive statistical features with applications using the XLSTAT statistical software.

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## Program

• A few definitions: descriptive statistics, variable, individual
• Describing one qualitative variable: mode, flat sorting, pie charts
• Describing the link between two qualitative variables: cross tabulation (contingency table)
• Describing one quantitative variable: mean, standard deviation, median, quartiles, box plots
• Describing the link between one quantitative variable & one qualitative variable: multiple box plots
• Describing the link between two quantitative variables: scatter plot
• 1 quantitative var. x 1 quantitative var. x 1 qualitative var.: scatter plot with colored points

#### Jean-Paul Maalouf

Jean-Paul Maalouf は、2014年からAddinsoftのシニア統計コンサルタントです。彼は生物学のPhD を保持し、2012年から統計学の指導に集中しており、かなりの経験を持ちます。彼のトレーニングの受講者には、フランスの主要な研究機関（INRA, CNRS, INSERM, CIRAD, 複数の大学）および世界中の民間企業が含まれます。 彼の指導法は、数学的というよりも統計ツールの概念的な説明に頼ります。必ずしも数学の経験を持たないユーザー、使用方法を素早く習得したいユーザーにとって、統計がとてもわかりやすくなります。

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