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Statistics Flashcards: Using Two Way Tables For Probability

Study Using Two Way Tables For Probability in Statistics with focused flashcards that help you recognize the idea, recall the key rule, and apply it in practice-style prompts.

QUESTION

What is the definition of a two-way frequency table?

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ANSWER

A table of counts for data classified by two categorical variables. Shows frequencies for combinations of two categorical variables.

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Statistics: Independence & Conditional Probability

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This deck focuses on Using Two Way Tables For Probability, giving you a quick way to review the definitions, rules, and examples that matter most for Statistics.

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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 37Practice questions for this set
A random sample of 150 students recorded whether they prefer to study in the morning or evening and whether they usually study alone or in a group. Using the two-way table, what is P(Morning∣Group)P(\text{Morning}\mid\text{Group})? Give your answer as a fraction. Two-way table (counts):
  • Group & Morning: 18
  • Group & Evening: 42
  • Alone & Morning: 45
  • Alone & Evening: 45
  • Row totals: Group = 60, Alone = 90
  • Column totals: Morning = 63, Evening = 87
  • Grand total: 150
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