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Bell work:. Write a statistical question you could ask your classmates about the movies they like. You will have 10 minutes to ask your classmates the statistical question you wrote during bell work. Create a line plot or a tally chart to display the results. Line plot Tally chart.

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Bell work
Bell work:

Write a statistical question you could ask your classmates about the movies they like.


You will have 10 minutes to ask your classmates the statistical question you wrote during bell work. Create a line plot or a tally chart to display the results.

Line plot

Tally chart


A statistical question is a question that will result in multiple and varying answers rather than a single answer.

  • Statistical questions can be divided into two groups:

    categorical or numerical.


Categorical data
Categorical data multiple and varying answers rather than a single answer.

  • Categorical data is measured qualitatively by placing the items into categories or groups.

    Ex. Favorite color, male or female, hair color

  • Categorical data is often displayed using a bar graph or a circle graph


Categorical data1
Categorical data multiple and varying answers rather than a single answer.

  • Often times, categorical data does not involve numbers, therefore will not have a mean, median, or range.

  • The mode is the answer that occurs most often. The mode is the most useful calculation for categorical data.


Numerical data
Numerical Data multiple and varying answers rather than a single answer.

  • Numerical data is measured quantitatively and has a value or number for which operations such as addition or averaging make sense.

  • Numerical data can be analyzed to find mean, median, range, and other forms of measurement

  • Numerical data is often displayed using a line plot (dot plot), histogram, or box and whisker plot.

    *We will study each of these in more detail throughout this unit


Examples of numerical data graphs
Examples of numerical data graphs multiple and varying answers rather than a single answer.


Sort the questions from your envelope into two groups
Sort the questions from your envelope into two groups: multiple and varying answers rather than a single answer.

Get into groups of 3

Categorical

Numerical

http://grade6commoncoremath.wikispaces.hcpss.org/Unit+5+Statistics+Probability

6.SP.1 Categorical and Numerical Questions



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