Pre-Test Active 2 TIME REMAINING 52:52 The area of the shape is square meters. 6 m 2 m 1 m 2 m -1 m 4 m 4 m 8 m Save and Exit Next Submit Mark this and return

The head librarian at the library of congress has asked her assistant for an interval estimate of the mean number of books checked out each day. the assistant provides the following interval estimate: from 740 to 920 books per day. what is an efficient, unbiased point estimate of the number of books checked out each day at the library of congress?

Show your workcan a right triangle have this sides? *how to prove it without using the pythagorean theorema*

The distribution of the amount of money spent by students for textbooks in a semester is approximately normal in shape with a mean of $235 and a standard deviation of $20. according to the standard deviation rule, how much did almost all (99.7%) of the students spend on textbooks in a semester?