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Cogito

Probability and Statistics · Chapter 1 · Lesson 1

Practice Worksheet

Types of Data and Their Displays

Choose the graph the data deserves.

12 problems · about 20 minutes · TEKS P.S.1.A, S-ID.A.1

NameDate

Figure — use these to answer the problems

Change the counts and watch which category leads. A bar chart compares separate groups.
Apple7
Banana4
Cherry9
Apple7
Banana4
Cherry9
Figure 1

Warm Up

Straightforward practice. Get the method working first.

5 problems

  1. Hair colour is which kind of data? 1 categorical, 2 quantitative.

    Answer

  2. Why do histogram bars touch while bar chart bars do not?

    • Histogram values run continuously; bar chart categories are separate.
    • It is only a drawing convention.

  3. Height in centimetres. 1 categorical, 2 quantitative.

    Answer

  4. Favourite sport. 1 or 2?

    Answer

  5. Number of siblings. 1 or 2?

    Answer

Build It Up

The same ideas with more to keep track of.

3 problems

  1. Postcode. 1 or 2?

    Answer

  2. Do histogram bars touch? 1 for yes, 0 for no.

    Answer

  3. How many features describe a distribution: shape, centre, spread and outliers?

    Answer

Stretch Yourself

Mixed problems. Work out what kind of question it is before you start.

4 problems

  1. Sort each variable by its type.

    Write each item under the heading it belongs to: Blood type · Shoe brand · Weight in kilograms · Test score

    Categorical

    Quantitative

  2. Temperature in degrees. 1 or 2?

    Answer

  3. The Survey

    Eye colour is which kind of data? Enter 1 for categorical, 2 for quantitative.

    Answer

  4. The Jerseys

    Jersey numbers on a team are which kind? 1 categorical, 2 quantitative.

    Answer