Every year, more than 100 , 000 100,000100, comma, 000 testers take the Law School Admission Test (LSAT). One year, the scores had a mean and standard deviation of approximately 151 151151 and 9 99 points, respectively. Suppose that in the scoring process, test officials audit random samples of 36 3636 tests, which involves calculating the sample mean score x ˉ x ˉ x, with, \bar, on top for each sample.

Which interval for the graphed function contains the local maximum? [–3, –2] [–2, 0] [0, 2] [2, 4]

Researchers were interested in whether relaxation training decreases the number of headaches a person experiences. they randomly assigned 20 participants to a control group or a relaxation training group and noted the change in number of headaches each group reported from the week before training to the week after training. which statistical analysis should be performed to answer the researchers' question?

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11