Descriptive Statistics1.11.0

Descriptive Statistics works out the complete statistical study of a series in seconds, and explains every calculation step by step, like a teacher at your side. Made for high school and university students, teachers and anyone who works with data. It works offline, with no ads and no account.

★ THREE KINDS OF VARIABLES
• Discrete quantitative variables: values (Xi) and frequencies (Ni)
• Continuous quantitative variables: classes [L1 ; L2[ and frequencies
• Qualitative variables: modalities and frequencies

★ QUICK DATA ENTRY
• Enter your rows one by one, or import several rows at once
• Paste a raw series ("3 5 5 7 3…"): the app counts the frequencies for you
• Continuous variables: the app groups the values into classes of equal width, chosen automatically with Sturges' rule

★ ALL THE RESULTS
• Frequency table: frequencies, proportions, cumulative frequencies and proportions
• Mean, mode and modal class, median and median class
• Quartiles, deciles and interquartile interval
• Range, variance, standard deviation, standard error and coefficient of variation
• Covariance and correlation coefficient
• Classes of unequal width: the charts show densities

★ EVERY CALCULATION EXPLAINED
Each result comes with its step-by-step explanation: the formula, the values put into it and the result. Ideal to check your homework, revise for an exam or understand a method.

★ CHARTS
Bars, lines and box plot for quantitative variables; bars and pie chart for qualitative variables. Choose the ones you want in the settings.

★ A COMPLETE COURSE
A descriptive statistics course with all its formulas, one page per notion: vocabulary (population, variable, statistical table), frequencies, measures of position (mean, median, mode, quartiles, deciles, percentiles), measures of dispersion (range, variance, standard deviation, coefficient of variation), covariance and correlation.

★ SAVE, EXPORT, SHARE
• Save your studies and reopen them in their calculator
• Export a study as a PDF, with the results, the charts and the explanations
• Share your results as text
• Export and import your backups as a file, to move them to another phone

★ FREE AND RESPECTFUL OF YOUR PRIVACY
• No ads, no account, no data collected
• Works without an internet connection
• In English, French, German, Spanish and Portuguese
• Light and dark theme, adjustable number of decimals
• Free software (GNU GPL v3)

Statistics homework, a dissertation, a survey to analyse or a business report: get your results in seconds, and understand them.