exercise and diet are being studied as possible substitutes for medication to lower blood pressure three groups of subjests will be used to study the effect of exercise group 1 is sedentary while group 2 walks and group 3 swims for 1 hour a day half of each of the three exercise groups will be on a salt-freee diet an additional group of subjects will not exercise or restrict but will take the standard medication
use (Z) for sedentary, (W) for walker,(S) for swimmer , (Y) for salt, (N) for no salt, (M) for medication and (F) for medication free

Question

exercise and diet are being studied as possible substitutes for medication to lower blood pressure three groups of subjests will be used to study the effect of exercise group 1 is sedentary while group 2 walks and group 3 swims for 1 hour a day half of each of the three exercise groups will be on a salt-freee diet an additional group of subjects will not exercise or restrict but will take the standard medication
use  (Z)  for sedentary, (W) for walker,(S)  for swimmer , (Y)  for salt, (N)  for no salt,  (M)  for medication and  (F)  for medication free

anonymous · Answer

a)with the aid of a tree diagram, show all elements of the sample space S

b)Given that A is the set of non-medication subjects and B is the set of walkers list the elements of (A U B)

 C)List the elements of ( A ∩ B)

anonymous · Answer

i'm not really sure how the tree diagram should look. i started with S and which had three branches (W, S, Z) and then those three branches all had S and N branches. and i don't know what to do with M and F