2 2 2 2 1 62 2 2 2 1 1 70 2 2 1 2 1 31 2 2 1 1 1 41 2 1 2 2 1 283 2 1 2 1 1 253 2 1 1 2 1 200 2 1 1 1 1 305 1 2 2 2 1 14 1 2 2 1 1 11 1 2 1 2 1 11 1 2 1 1 1 14 1 1 2 2 1 31 1 1 2 1 1 46 1 1 1 2 1 37 1 1 1 1 1 82 2 2 2 2 2 122 2 2 2 1 2 68 2 2 1 2 2 33 2 2 1 1 2 25 2 1 2 2 2 329 2 1 2 1 2 247 2 1 1 2 2 172 2 1 1 1 2 217 1 2 2 2 2 20 1 2 2 1 2 10 1 2 1 2 2 11 1 2 1 1 2 9 1 1 2 2 2 56 1 1 2 1 2 55 1 1 1 2 2 64 1 1 1 1 2 53 Y1 Y2 Y3 Y4 IQ count $units 32 $ $data Y1 Y2 Y3 Y4 IQ count $ $C M&N problem 6.9, table 6.10, page 229