We know that the probability that a 6 is not rolled on a die is:
[tex]\begin{gathered} p=\frac{5}{6} \\ \end{gathered}[/tex]because the dice is rolled 4 times it would be like this:
[tex]p=(\frac{5}{6})^4=0.482[/tex]therefore, the probability is:
[tex]\begin{gathered} p=1-0.482 \\ p=0.517 \end{gathered}[/tex]the probability of it happening is 0.517 or 51.7%