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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.


Bell work

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


Bell work

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

  • 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

  • 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

  • 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


Sort the questions from your envelope into two groups

Sort the questions from your envelope into two groups:

Get into groups of 3

Categorical

Numerical

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

6.SP.1 Categorical and Numerical Questions


Identify whether the following graphs are categorical or numerical

Identify whether the following graphs are categorical or numerical


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