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Data Displays

Create and interpret histograms, box plots, and dot plots.

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Data Displays

Dot Plots (Line Plots)

Each dot represents one data value placed above a number line.

Best for: Small data sets, seeing individual values, identifying clusters and gaps.

Histograms

Bars show the frequency of data in intervals (bins).

How to make a histogram:

  1. Choose equal-width intervals
  2. Count values in each interval (frequency)
  3. Draw bars (no gaps between bars!)

Reading histograms: The height shows how many values fall in each interval.

Best for: Large data sets, seeing the shape of a distribution.

Box Plots (Box-and-Whisker Plots)

A box plot shows the five-number summary:

  1. Minimum (smallest value)
  2. Q1 (first quartile — 25th percentile)
  3. Median (middle — 50th percentile)
  4. Q3 (third quartile — 75th percentile)
  5. Maximum (largest value)

The box spans from Q1 to Q3. The whiskers extend to the min and max.

IQR (Interquartile Range)

IQR=Q3−Q1IQR = Q_3 - Q_1

The IQR measures the spread of the middle 50% of the data.

Choosing the Right Display

DisplayUse When
Dot plotSmall data set, see individual values
HistogramLarge data set, see distribution shape
Box plotCompare distributions, see spread
Bar graphCategorical data
Circle graphParts of a whole

Describing Distributions

Use shape, center, and spread:

  • Shape: symmetric, skewed left, skewed right
  • Center: mean or median
  • Spread: range or IQR

Remember: Histograms have no gaps between bars (quantitative data). Bar graphs do have gaps (categorical data).

Explain using:
← Previous Topic
Mean, Median, Mode, and Range
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📌 Related Topics in Statistics and Data

Mean, Median, Mode, and Range

❓ Frequently Asked Questions

What is Data Displays?▾
Create and interpret histograms, box plots, and dot plots.
How can I study Data Displays effectively?▾
Start by reading the study notes and working through the examples on this page. Then use the flashcards to test your recall. Regular review and active practice are key to retention.
Is this Data Displays study guide free?▾
Yes — all study notes, flashcards, and practice problems for Data Displays on Study Mondo are free to access. No account is needed.
What course covers Data Displays?▾
Data Displays is part of the Grade 6 Math course on Study Mondo, specifically in the Statistics and Data section. You can explore the full course for more related topics and practice resources.