Lisa and her brother went tothe town carnival. together they won 15 prizes. lisa won 9 of them. what fraction did her brother win? if there had been only 10 prizes won, how many would her brother have won if the fractions were equailvent?

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?

100 points, hi, i’m not sure how to get the equation from the graph and table.

Alex measured the length of an item to be 3.7 cm. the actual length is 3.5 cm. what is alex’s percent error?