red marbles = 97
blue marbles = 16
white marbles = 53
total marbles = 97 + 16 + 53 = 166
Therefore, the probability it is not a red marble can be calculated below
[tex]\begin{gathered} \text{probability it is red=}\frac{97}{166}=0.58433734939 \\ \text{probability it is not red=1-}\frac{97}{166}=\frac{166-97}{166}=\frac{69}{166}=0.4156626506=0.4157 \end{gathered}[/tex]