Frequency Tables/ Two way tables
Standard: 8.SP.4 I can construct and interpret frequency tables / two way tables
Two way table – bivariate data (two variables) that displays count Two way table – bivariate data (two variables) that displays count. It is used to analyze survey results Relative frequency = 𝑠𝑢𝑏𝑡𝑜𝑡𝑎𝑙 𝑡𝑜𝑡𝑎𝑙
Example SUV Sports Car TOTAL Male 21 60 Female 156 54
SUV Sports Car TOTAL Female 21 39 60 Male 135 15 150 Total 156 54 210
What percent of everyone surveyed were males who want a SUV? Sports Car TOTAL Female 21 39 60 Male 135 15 150 Total 156 54 210 What percent of everyone surveyed were males who want a SUV? What percent of everyone surveyed were females who want a sports car? 3. What percent of everyone surveyed were females? 4. What is the relative frequency of females who chose a SUV?
What percent of the males surveyed want a sports car? What percent of the females surveyed want a SUV? What percent of those who chose SUV were males? What percent of those who chose a sports car were females?
18 more females chose sports car than females who chose a SUV? TOTAL Female 21 39 60 Male 135 15 150 Total 156 54 210 True of False? 18 more females chose sports car than females who chose a SUV? More people chose sports car than people who chose a SUV? More males were surveyed than females? About 29% of those who were surveyed were women? About 93% of the males chose a sports car?