To estimate the value of \(6 \times 2\), we can perform the multiplication:
\[ 6 \times 2 = 12 \]
Now let's compare this result with the provided choices:
- 7.1
- 8.4
- 9.8
- 6.4
None of these values are close to 12. However, if we are simply looking for the best estimate from the choices given, we can consider which value is relatively higher, as all provided options are lower than our calculated result of 12, but 9.8 is the closest.
Thus, the best estimate from the provided choices is:
9.8.