mashugama1
May 11, 2009, 01:32 PM
Did I get this right? 30% of us houses own one or more pc's. In a sample of 500 hi tech houses 178 own pc's. How many of the 500 households are expected to own pc's?
The answer I got was 150! Can anyone verrify?
The answer I got was 150! Can anyone verrify?