Answer: 2. It is likely that a confounding variable could be a contributing explanation for the difference between these two groups.
3. This is an observational study, not an experiment.
Step-by-step explanation:
Based on the information given, the statement that's true include:
• It is likely that a confounding variable could be a contributing explanation for the difference between these two groups.
• This is an observational study, not an experiment.
It is an observational study as the researcher observed just observed the scenarios without him trying to change the people that are being exposed to it or controlling it.
Therefore, the correct options are II and III only.
Answer:
B, D, F
Step-by-step explanation:
In a rational exponent, the numerator is an exponent, and the denominator becomes the index of the root.
Answer: B, D, F
Answer:-9
Step-by-step explanation:
Answer:
A+B only 10% = 1250/2x1-2 = 0 1250/76 = x 1.6 + (+1=2.5%) 90% vote = 1226 95%=1302 99% 1377 5% 1188 2.5% 1169
Step-by-step explanation:
A= deduct this from sample size B it is usually 5 of the vote% so in comparison wont hinder the negative we deduct 1 from the 5%. B. Margin of error is 2.5% deduction comparison was Mayor was asking for a negative outcome with a positive vote. which is biased alone. Loss of confidence due to margins.
Answer:
Its (9y^2)/(4x)
Step-by-step explanation: