Given marginal and conditional relative frequencies, construct a two-way relative frequency table summarizing categorical bivariate data.
Algebra 1 Example:
A study shows that 9% of the population have diabetes and 91% do not. The study also shows that 95% of the people who do not have diabetes, test negative on a diabetes test while 80% who do have diabetes, test positive. Based on the given information, the following relative frequency table can be constructed.
|Has diabetes ||7.2%||1.8%||9%|
| Doesn't have diabetes|| 4.55%||86.45%||91%|
Construction includes cases where not all frequencies are given but enough are provided to be able to construct a two-way relative frequency table.
Clarification 2: Instruction includes the use of a tree diagram when calculating relative frequencies to construct tables.
Subject Area: Mathematics (B.E.S.T.)
Strand: Data Analysis and Probability
Date Adopted or Revised: 08/20
Status: State Board Approved