Can I get some help, please?

Question

anonymous · Answer

A study was conducted to determine the effectiveness of varying amounts of vitamin C in reducing the number of common colds. A survey of 450 people provided the following information:


Daily amount of Vitamin C taken
None	500 mg	1000 mg
No Colds	57	26	17
At least one cold	223	84	43



What conclusion can be made?
 Approximately 64% of the people that had at least one cold did not take vitamin C.
 The data proves that vitamin C has no effect on the number of common colds.
 The data proves that vitamin C reduces the number of common colds.
 Approximately 50% of the people that had at least one cold did not take vitamin C.
 Since common colds are caused by viruses, there is no reason to conclude that vitamin C could have any effect.

danjs · Answer

Part A)

450 total people,   223 had at least 1 cold and took no vitamin C

danjs · Answer

223 is what % of 450

223 = (x/100) * 450

22300 = 450 x 

x = 49.55 %

danjs · Answer

First answer choice is not a valid conclusion...

anonymous · Answer

So, it is D?

danjs · Answer

Which one is D?

anonymous · Answer

Approximately 50% of the people that had at least one cold did not take vitamin C.

danjs · Answer

hmm, lets check that

danjs · Answer

Vitamin C           None   500 mg   1000 mg
At least one cold    223     84           43

danjs · Answer

The statement says half of the people with at least one cold, took NONE

anonymous · Answer

Okay, so that one is a no go.

danjs · Answer

223 is half of 223 + 84  + 43  (total with one cold)

anonymous · Answer

360

danjs · Answer

350 people total had at least one cold, 
223 is what percent of those 350 people?

223 = (x/100)*350

anonymous · Answer

446/7

danjs · Answer

about 63% , that is not close to half, it is much more

anonymous · Answer

So, it is Approximately 64% of the people that had at least one cold did not take vitamin C.

danjs · Answer

That guess was wrong, which other one do you think it is?

danjs · Answer

oh, that one is a choice too... lol yeah that is the answer now

anonymous · Answer

Okay, thank you for your time and help.

anonymous · Answer

I tried both of those already.  No luck with them.

danjs · Answer

oh right nevermind, cool yeah just that one answer

anonymous · Answer

Alright, thanks again.

danjs · Answer

welcome