Rico and Patrick love to go shark fishing. They wondered if a new brand of shark bait would help them catch more sharks. To test
their idea, they bought a big container of bait for their next 3 trips to their top-secret fishing spot. Rico fished without any bait, while Patrick used the new bait. Both of them kept track of how many sharks they caught in 30 minutes, which is shown in the chart. Rico
Patrick
25
24
18
28
26
19
1.Which person was the control?
2. What is the independent variable?
3. What is the dependent variable?
4. Based on the data, how would you rate the new bait?
The distillation of coal tar can obtain aromatic compounds like benzene and toluene, and also phenolic compounds like phenol. Hence, the only option here that cannot be obtained from the distillation of coal tar is coke.
