Using a random sample of 500 households,

determine the probability that the sample mean

falls within + $18.39 of the population mean

$850 (in other words, between $831.61 and

$868.39).

“exterior angles of triangles. an exterior (or external) angle is the angle between one side of a triangle and the extension of an adjacent side. try this drag the orange dots on any vertex to reshape the triangle.” look to get to the answer i explained what it means and other things i hope it you .