# Box6_6.txt # # age: fish age # catch: catch of fish # lake: sampled lake # age catch lake 1 433 A 2 818 A 3 243 A 4 67 A 5 48 A 6 5 A 7 30 A 8 42 A 9 22 A 1 305 B 2 491 B 3 155 B 4 100 B 5 30 B 6 49 B 7 16 B 8 6 B