Q49
Single choice
Maintenance cost at a hospital was observed to increase as activity level increased. The following data was gathered:
Activity Level -
Maintenance Cost
Month
Patient Days
January
5,600
$7,900
February
7,100
$8,500
March
5,000
$7,400
April
6,500
$8,200
May
7,300
$9,100
June
8,000
$9,800
If the cost of maintenance is expressed in an equation, what is the independent variable for this data?