Triangle RST is rotated 90° about the origin to create triangle R’S’T’. Which rule describes this transformation? A (x, y) - (y, -x B (x, y) - (x, -y) C (x, y) - (-x, y) D (x, y) - (-y, x)

Now, martin can reasonably guess that the standard deviation for the entire population of people at the mall during the time of the survey is $1.50. what is the 95% confidence interval about the sample mean? interpret what this means in the context of the situation where 95 people were surveyed and the sample mean is $8. use the information in this resource to construct the confidence interval.