4. look at the graph below which shows the results of a drugs trial with 6000 patients. 3000 patients were
riven a tablet containing statins, 3000 were not. both groups were given advice on changing their lifestyle
and diet
without
statins
with statins
a) describe the two conclusions that can be made from the results
b) what is the name given to the group that were not given statins?
c) what would they have been given instead?
d) give one reason that the results of this trial would be considered to be reliable
5. look at the graph below.
compare the incidence of disease for the different weight groups. don't forget to include data.

29.1-12=17.1the answer is this one

Answerthe half-reaction having the greatest tendency to occur at the anode:     i₂(aq) + 2e⁻  ⇄ 2i⁻  ;   e = +0.53 v======oxidation occurs at the anode. we must therefore find the half-reaction with the greatest tendency to oxidize.the given values of e are reduction potentials (the form of the half-reactions are of reduction).the lower the reduction potential, the higher the potential to oxidize. the half-cell with the lowest reduction potential will have the greatest tendency to oxidize at the anode.the half-reaction having the greatest tendency must be    i₂(aq) + 2e⁻  ⇄ 2i⁻    e = +0.53 vbecause its reduction potential is the lowest out of the three.