The graph shows a distribution of data. What is the standard deviation of the data?
JO 0.5
O 1.5
O 2.0
O 2.5
1.5
2.5

Use the elimination method to solve the system of equations -x+5y=-4 and 4x+3y=16

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?

What is 32+4 x (16 x 1/2) -2 show your work}