Random samples of students at ​four-year colleges were interviewed several times since . Of the students who reported ​, the percentage who reported bingeing at least three times within the past two weeks was ​% of students in and of students in a. Estimate the difference between the proportions in and ​, and interpret. b. Find the standard error for this difference. Interpret it. c. Define the two relevant population parameters to compare in the context of this exercise. d. Construct and interpret a ​% confidence interval to estimate the true difference. e. State the assumptions for the confidence interval in part d to be valid.

What is the measure of x, in degrees

1- is the product of two rational numbers irrational or rational? first, make a hypothesis by multiplying two rational numbers. then, use variables such as x=a/b and y=c/d and the closure property of integers to prove your hypothesis. 2- what do you think the product of a nonzero rational number and an irrational number is? is it rational or irrational? make use of variables, the closure property of integers, and possibly a proof by contradiction to prove your hypothesis. 3- why do we have to specify that the rational number must be nonzero when we determine what the product of a nonzero rational number and an irrational number is? if the rational number were 0, would it give us the same result we found in part b?

How is this equation completed? i cannot find any examples in the book.