The probability of drawing a yellow chip is \(\displaystyle\frac{{3}}{{{7}+{9}+{3}+{6}}}=\frac{{3}}{{25}}\). Since there is replacement, the sample space remains the same as 25 chips. So, the probability of drawing a blue chip in the next draw is \(\displaystyle\frac{{6}}{{{7}+{9}+{3}+{6}}}=\frac{{6}}{{25}}\). So, the probability of drawing a yellow then a blue (with replacement) is:

\(\displaystyle\frac{{3}}{{25}}×\frac{{6}}{{25}}=\frac{{18}}{{625}}\)

\(\displaystyle\frac{{3}}{{25}}×\frac{{6}}{{25}}=\frac{{18}}{{625}}\)