Understand Statistical Questions

6.DS.1 · Unit 2 · Lesson 1

Name   Period

Objectives / Objetivos

Content Objective: I can tell the difference between a statistical question and a non-statistical question.

Language Objective: I can explain my reasoning using the words statistical question, data, variability, and survey.

Key Idea / Idea clave

Statistical Questions & Variability. 1. Statistical Question: Expects answers that vary across people, trials, or items. 2. Non-Statistical Question: Has one single fixed answer. 3. Data Collection: Gather varied data points to create a distribution

I Notice / Observo

  • Which questions could have many different answers?
  • Which questions have only one exact answer?

I Wonder / Me pregunto

  • Why would a coach care about questions with variability?

Vocabulary / Vocabulario

Term / TérminoDefinition / Definición
Statistical Questions and Data
Preguntas estadísticas y datos		A statistical question expects varied answers that can be collected as data.
Una pregunta estadística espera respuestas variadas que se pueden recopilar como datos.
Statistical Question
Pregunta estadística		A question where the answers will be different for different people.
Una pregunta cuyas respuestas serán distintas para distintas personas.
Non-statistical Question
Pregunta no estadística		A question that has just one fixed answer that is the same no matter who you ask, so there is no data to collect.
Una pregunta que tiene una sola respuesta fija, igual sin importar a quién le preguntes, por lo que no hay datos que recolectar.
Data
Datos		Facts and numbers you collect, like answers to a survey.
Datos y números que recoges, como respuestas a una encuesta.
Variability
Variabilidad		How spread out the numbers are.
Qué tan separados están los números.
Survey
Encuesta		Collecting facts by asking people questions.
Recoger datos haciendo preguntas a las personas.

Practice Preview / Vista previa de práctica

  1. Which of the following is a statistical question?
    1. How many points did each player score this season?
    2. How many points are scored for a free throw?
    3. What sport does this team play?
    4. How many halves are in a soccer game?
  2. A coach asks: "How many hours does each athlete on the track team sleep the night before a meet?" Why is this a statistical question?
    1. Because the answers will vary from athlete to athlete
    2. Because it is about sports
    3. Because it has a numerical answer
    4. Because the coach asked it
  3. Decide if each question is statistical and explain why.
  4. Find the Reasoning Error
    1. Step 1: Question — How many touchdowns did the quarterback throw this season?
    2. Step 2: Student says — This is NOT a statistical question.
    3. Step 3: Reason — It only asks about one player, so there is no variability.

    Which step has the mistake? Explain it and write the correct work.

Reflection / Reflexión

One thing I learned today / Una cosa que aprendí hoy: