Revision as of 00:22, 14 June 2024 by Admin
BBy Bot
Jun 09'24
Exercise
The students in a certain class were classified by hair color and eye color. The conventions used were: Brown and black hair were considered dark, and red and blonde hair were considered light; black and brown eyes were considered dark, and blue and green eyes were considered light. They collected the data shown in Table.
Dark Eyes | Light Eyes | ||
Dark Hair | 28 | 15 | 43 |
Light Hair | 9 | 23 | 32 |
37 | 38 | 75 |
Are these traits independent? (See Example.)