I’m pretty sure that the first one is one
Answer:
A.
Step-by-step explanation:
38% = 38/100 = 0.38
A percentage is anything over 100
Answer:
Problems left to complete = 9
Step-by-step explanation:
Given that:
Number of problems on the test = 45
Percent of completed problems = 80%
Number of completed problems = 
Number of completed problems = 0.8 * 45 = 36
Problems left to complete = 45 - 36
Problems left = 9
Hence,
Problems left to complete = 9
Answer:
Step-by-step explanation:
One
Randomization not only occurs, but the person conducting the experiment has no idea who is receiving what. If there are two groups, there are members in each group that receive a drug and others who do not.
Two
poses no interference on the subjects. The information is obtained. It is pretty objective. When the survey is complete so is the person interviewed by those conducting the survey.
Three
Treatment is imposed at least on 1/2 the participants.
Try the square root of 49 and u will get seven. 7*7=49. XD
