1. in an experiment study the participants estimate for the height of a 3 meter image projected 12 meters away 2. The number of your fellow classmates who have used the World Wide Web information on Seasonal Affective disorder 3. The interest rate charged by a local bank this quarter for new home loans.4. The intensity of a 1000-Hz tone judged by a participant to be equally as loud as a 500-Hz tone of 50 decibles