Mr. doton wants to know if the neighbors on his street would be interested in a community watch. He surveys every fourth household on his street and concluded that 70% would be interested. Is this conclusion valid?explain

In the football stadium, there are 18 empty seats out of 360 total seats. (1a) write the ratio of empty seats to total seats as a fraction in simplest form. (1b) then explain its meaning.

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 the slope of any line parallel to the line 8x+9y=3 in the standard (x,y) coordinate plane?