Lesson 2.1Understand Statistical Questions
Set B · Version ASecond form · supported practice
Learning target I can tell the difference between a statistical question and a non-statistical question.
Why This Matters You've just been hired as the data analyst for a youth basketball league. The head coach hands you a list of questions the staff wants to investigate about their players. Some questions will give you interesting data with variety, while others have just one fixed answer. Your job: figure out which questions are worth investigating with data. Two of the coach's questions are: "How tall is our point guard?" and "How tall is each player on the roster?"
RememberUnderstand Statistical Questions
Statistical Questions & Variability A statistical question is one you answer by collecting data, and the answers are different for different people or cases. A non-statistical question has just one fixed answer.
- Statistical Question: Expects answers that vary across people, trials, or items.
- Non-Statistical Question: Has one single fixed answer.
- Data Collection: Gather varied data points to create a distribution
Words: Statistical Question (Pregunta estadística)Non-statistical Question (Pregunta no estadística)Data (Datos)Variability (Variabilidad)Survey (Encuesta)
-
1Circle the letter of the best answer. Show how you know.
Which of these would collect data that VARIES (making it a statistical question)?
- AHow many siblings does each student in the class have?
- BHow many days are in one week?
- CHow many minutes are in one hour?
- DWhat is 12 + 12?
Hint The capital word VARIES is the clue — you need the question whose answers change from student to student.
Show your work -
2Circle the letter of the best answer. Show how you know.
A box has a base area of 10 square inches and a height of 4 inches. What is its volume?
- A2.5 in³
- B14 in³
- C40 in³
- D40 in²
FormulaPut the numbers inWork it outAnswer with its unit- 1Name itWhich measure is asked?
- 2Write the formulaBefore any numbers.
- 3SubstituteMatch each letter.
- 4Unitunits, sq units, or cubic?
-
3Circle the letter of the best answer. Show how you know.
What is the volume of a rectangular prism with l = 6 cm, w = 2 cm and h = 3 cm?
- A11 cm³
- B18 cm³
- C36 cm³
- D36 cm²
FormulaPut the numbers inWork it outAnswer with its unit- 1Name itWhich measure is asked?
- 2Write the formulaBefore any numbers.
- 3SubstituteMatch each letter.
- 4Unitunits, sq units, or cubic?
-
4Circle the letter of the best answer. Show how you know.
A prism has a base area of 10 square feet and a volume of 40 cubic feet. What is its height?
- A4 feet
- B30 feet
- C50 feet
- D400 feet
FormulaPut the numbers inWork it outAnswer with its unit- 1Name itWhich measure is asked?
- 2Write the formulaBefore any numbers.
- 3SubstituteMatch each letter.
- 4Unitunits, sq units, or cubic?
-
5Circle the letter of the best answer. Show how you know.
A box measures 1/2 ft by 3 ft by 4 ft. What is its volume?
- A2 cubic feet
- B6 cubic feet
- C7.5 cubic feet
- D12 cubic feet
FormulaPut the numbers inWork it outAnswer with its unit- 1Name itWhich measure is asked?
- 2Write the formulaBefore any numbers.
- 3SubstituteMatch each letter.
- 4Unitunits, sq units, or cubic?
-
6Circle the letter of the best answer. Show how you know.
The school newspaper wants to write a story about the girls' soccer team. A reporter suggests asking: "How many goals has the team scored total?" The editor says they should ask: "How many goals did each player score this season?" Which question is statistical?
- A'How many goals has the team scored total?'
- BBoth are statistical
- C'How many goals did each player score this season?'
- DNeither is statistical
Show your work
Explain your thinkingWhat pattern do you notice about statistical questions compared to non-statistical questions?
Sentence starter Statistical questions expect ___ in the answers because ___. Non-statistical questions have only ___ answer because ___.
Lesson 2.1Understand Statistical Questions
Set B · Version BSecond form · core practice
Learning target I can tell the difference between a statistical question and a non-statistical question.
Why This Matters You've just been hired as the data analyst for a youth basketball league. The head coach hands you a list of questions the staff wants to investigate about their players. Some questions will give you interesting data with variety, while others have just one fixed answer. Your job: figure out which questions are worth investigating with data. Two of the coach's questions are: "How tall is our point guard?" and "How tall is each player on the roster?"
-
1Write the name of the correct group on each line.
Drag each scouting question into the right bin. A statistical question expects answers that VARY from player to player; a non-statistical question has one fixed answer.
- How many push-ups can each player on the team do in one minute?
- How many points does each starter average per game?
- How many seconds does each player take to sprint the court?
- How many free throws did each teammate make in practice?
- How many players are allowed on the court at once?
- What is the diameter of an official basketball hoop?
- How many quarters are played in one game?
-
2Write the letter of the matching item on each line.
Match each weak (non-statistical) scouting question to a stronger version that becomes statistical by adding variability.
- How many players are on the roster?
- What time does the game start?
- How long is the basketball court?
- How many points did the team score in total?
- AHow many minutes does each player on the roster play per game?
- BWhat time does each fan arrive at the arena?
- CHow far from the hoop does each player shoot most often?
- DHow many points did each player score in the game?
-
3Circle the letter of the best answer. Show how you know.
The school newspaper wants to write a story about the girls' soccer team. A reporter suggests asking: "How many goals has the team scored total?" The editor says they should ask: "How many goals did each player score this season?" Why is the team total NOT a statistical question?
- ABecause the total is a very large number
- BBecause it is about soccer
- CBecause goals are counted, not measured
- DBecause it has exactly one answer, with no variability
Show your work -
4Circle the letter of the best answer. Show how you know.
The school newspaper wants to write a story about the girls' soccer team. A reporter suggests asking: "How many goals has the team scored total?" The editor says they should ask: "How many goals did each player score this season?" Which of these is a statistical question?
- AHow tall am I?
- BWhat is today's date?
- CHow many minutes are in an hour?
- DHow tall are the students in my class?
Show your work -
5Circle the letter of the best answer. Show how you know.
The team analyst writes four questions for the scouting report. Which one is a statistical question?
- AHow many points is a single free throw worth?
- BWhat is the height of the basketball rim?
- CHow many rebounds does each player grab per game?
- DHow many timeouts does each team get per half?
Show your work -
6Circle the letter of the best answer. Show how you know.
Why does the question "How many minutes did each athlete warm up before the game?" count as a statistical question?
- ABecause the answer is measured in minutes
- BBecause the warm-up times will vary from one athlete to another
- CBecause every athlete warmed up for exactly the same time
- DBecause it is about a sports team
Show your work