The mean weight of an adult is 69 kilograms with a variance of 121. If 31 adults are randomly selected, what is the probability that the sample mean would differ from the population mean by more than 1.3 kilograms? Round your answer to four decimal places.

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.

a reflection across the x axis and a 90 degree rotation left and right.

it would have to be 3/0