Jason is collecting data on the rate of water usage in the tallest skyscraper in the world during a typical day. the skyscraper contains both apartments and businesses. the electronic water meter for the building displays the total amount of water used in liters. at noon, jason looks at the water meter and notes that the digit in the ones place on the water meter display changes too rapidly to read the digit and
that the digit in the tens place changes every second or so.

a. estimate the total number of liters used in the building during one 24-hour day. take into account
the time of day when he made his observation. (hint: will water be used at the same rate at
2: 00 a. m. as at noon? ) explain how you arrived at your estimate.

b. to what level of accuracy can jason reasonably report a measurement if he takes it at precisely
12: 00 p. m.? explain your answer.

c. the meter will be checked at regular time spans (for example, every minute, every 10 minutes, and
every hour). what is the minimum (or smallest) number of checks needed in a 24-hour period to
create a reasonably accurate graph of the water usage rate with respect to time? (for example,
24 checks would mean checking the meter every hour; 48 checks would mean checking the meter
every half hour.) defend your choice by describing how the water usage rate might change during
the day and how your choice could capture that change.