Boxplots (VCE SSCE General Mathematics): Quizzes

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Boxplots
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10 questions from this quiz

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What percentage of data falls below the first quartile (Q1Q_1)?

25%

What does the box in a boxplot represent?

Middle 50% of data

How is the interquartile range (IQR) calculated?

Q3Q1Q_3 - Q_1

An outlier is a value more than how many IQRs from the nearest quartile?

1.5

What is the formula for the upper fence?

Q3+1.5×IQRQ_3 + 1.5 \times \text{IQR}

Is a value lying exactly on a fence considered an outlier?

No

When outliers exist, where do the whiskers extend to?

Most extreme non-outlier values

What percentage of data values lie below Q3Q_3?

75%

What percentage of values fall between Q1Q_1 and Q3Q_3?

50%

How are outliers shown on a boxplot?

As individual dots or circles

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