Question
Complete the following table :
| Year | Attribute $A$ | Attribute $B$ | Total | ||||||
| Sub – data $1$ |
Sub –data $2$ |
Total | Sub – data $1$ |
Sub –data $2$ |
Total | Sub – data $1$ |
Sub –data $2$ |
Total | |
| $2014$ | $200$ | $300$ | $100$ | $200$ | |||||
| $2015$ | $400$ | $150$ | $3000$ | $300$ | |||||