P=0.15
P^ is the sample proportion which comes from the data
In this case the p^=12/50=0.24
15 + 1 = x/6
16 = x/6
16 * 6 = x
x = 96
Answer: A)
Answer:
Step-by-step explanation:
36 : 3 = 12
12 : 3 = 4
...
4/3 : 3 = 4/
The answer for your problem is shown on the picture.
Answer:
A
Step-by-step explanation:
Basically, this is an observational study because the researcher does not apply any treatment.
It's not an experiment because there is no experimentation involved. :)
It's not double-blind because in that case the researcher would have to apply something to two kinds of groups. one aware one the other not. not the case.
It's not D because The observations are comparing two kinds of subjects and they are not looking for a cause and effect.
