Question 1015336
Defect 1 present: {{{P=0.05}}}
Defect 1 not present : {{{P=1-0.05=0.95}}}
Defect 2 present: {{{P=0.02}}}
Defect 2 not present : {{{P=1-0.02=0.98}}}

Defect 1, not defect 2: {{{P=0.05(0.98)=0.049}}}
Defect 2, not defect 1: {{{P=0.02(0.95)=0.019}}}
Defect 1, defect 2 : {{{P=0.05(0.02)=0.001}}}
So then summing those probabilities,
{{{P=0.049+0.019+0.001=0.069}}}
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You could have also figured out the probability that neither defect exists,
{{{P=0.95(0.98)=0.931}}}
The complement would be either one defect or both defects exist so,
{{{P=1-0.931=0.069}}}