Two-Way TablesHigh School · Statistics & Probability · HSS-CP.A.4, HSS-CP.A.5, HSS-CP.B.6
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High School · Statistics & Probability · Think & learn · Ages 14–18

Two-Way Tables

Maths standardHSS-CP.A.4HSS-CP.A.5HSS-CP.B.6Read two-way frequency tables, find conditional probabilities, and decide whether events are independent.

  1. Totals live in the last row and column.
  2. P(A | B): look only at the B row/column, then find the part that’s A.
  3. Independent if P(A | B) = P(A).
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