Although correlational studies cannot demonstrate causality, on level they are often preferable

Suppose you are going to roll a fair 6 sided die 10 times and record p- hat, the proportion of times that 1 or a 2 is showing. questions: 1) what is the standard deviation of the sampling distribution of p-hat? interpret this value. 2) describe the sampling distribution of p-hat. justify your answer.

With the use/abuse of alcohol, the heart is more efficient in the use of nutrients by the heart tissue.

When the blood leaves the atria (upper chambers) where does it flow to? a. aorta b. lungs c. ventricles d. rest of the body