AP Statistics Flashcards: Summary Statistics For A Quantitative Variable

Study Summary Statistics For A Quantitative Variable in AP Statistics with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

Calculate the weighted mean for $x: 3, 5, 7$ with weights $2, 3, 5$ .

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ANSWER

$\bar{x}_w = 5.8$ . $\frac{2(3) + 3(5) + 5(7)}{2+3+5} = \frac{58}{10} = 5.8$ .

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Describing the Distribution of Quantitative Variables35 cards

Graphical Representations of Summary Statistics39 cards

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What this deck covers

This deck focuses on Summary Statistics For A Quantitative Variable, giving you a quick way to review the definitions, rules, and examples that matter most for AP Statistics.

How to use these flashcards

Work through these flashcards in short sessions. Try to answer each prompt before flipping the card, then revisit any cards you miss until the explanation feels automatic.

Practice questions

1 of 50Practice questions for this set

A wildlife biologist summarized the lengths (in centimeters) of 65 fish caught in a lake. The summaries were: mean

=24.5

cm, median

=24.0

cm, SD

=4.0

cm,

Q_1=22.0

cm,

Q_3=27.0

cm, minimum

=15

cm, maximum

=33

cm (five-number summary:

15, 22, 24, 27, 33

). Which interpretation is correct?

Choose an answer

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