Statistician
Present findings, question a survey, and explain probability — in precise Spanish, out loud.
The working vocabulary is a precise core — la muestra (the sample), la media aritmética and la mediana, el margen de error, el intervalo de confianza — plus the everyday words people actually reach for: in Mexico the average is el promedio, in Spain la media. The one line every Spanish-speaking analyst keeps ready is correlación no es causalidad — correlation isn't causation. And in the &Be lessons there are no flashcards or drills: you learn each term by saying it while you present real numbers and defend them.
Below: the vocabulary lesson by lesson — from sampling to chi-squared — how analysts in Mexico, Argentina and Spain really talk about data, and a way to rehearse a full presentation out loud.
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Regional Spanish
Textbooks teach one word. Locals use several — pick your region's and stay consistent.
Watch out
The part no drill site can do
Olivia
Your vocabulary teacher for this pack
Nothing here is a worksheet. In the Statistician lessons, Olivia makes you the analyst in the room: you present survey results and she presses you on la muestra and el margen de error; you explain la correlación and la regresión to a colleague who wants it in plain language; you brief a decision-maker on la tendencia in the polling data. Every term gets said out loud, with your own numbers behind it — that's how it sticks.
Blank mid-sentence and nothing bad happens — she waits. That's the practice, without unnecessary judgement.
Finish the 6 lessons and Statistician is yours — earned, not given.
First 10 lessons free · 10-minute spoken lessons · your AI coaching team remembers you
Quick answers
The textbook mean is la media aritmética and the median is la mediana. In everyday Mexican Spanish the average is el promedio; in Spain it's la media — with the classic warning la media te la cuela, mejor mira la mediana (the mean fools you, look at the median).
A survey is la encuesta, an opinion poll el sondeo de opinión. Report it with el margen de error, el intervalo de confianza and the sample size — and if something looks off, say so plainly: la encuesta tiene sesgo (the survey is biased).
Correlación no es causalidad — Mexican analysts add ¡no te claves! (don't get hung up on it). The precise habit behind the slogan: say está correlacionado con rather than causa unless you can prove it.
El valor atípico — though in a Colombian meeting you might hear it in English: ese outlier te está rompiendo el gráfico (that outlier is wrecking your chart). It's the reason the median often beats the mean: la media miente cuando hay outliers.
A bar chart is el gráfico de barras — in Mexico usually la gráfica de barras — and a scatter plot is el diagrama de dispersión. Point at the pattern with la tendencia (the trend): la tendencia va para arriba.
