Question

suppose that prices of a certain model of new homes are normally distributed with a mean of $150,000 use 68-95-99.7 rule to find the percentage of buyers who paid:

between $150,000 and $152,000 if the standard deviation is $1200

Answer 1

you can plug in your numbers and play around with Z table stuff at

http://davidmlane.com/hyperstat/z_table.html