A park ranger observes visitors while they hike. Of the last $100$ hikers to pass by$,28$ were wearing some type of small waist$-$hung storage pouch $($a "fanny$-$pack"$),10$ drug a stick along the ground as they walked, and $5$ displayed both of these characteristics. Based on this data, find the probability that a random hiker in the park will either wear a fanny$-$pack or drag a stick along the ground $($or both$).$

$[$ENTER YOUR ANSWER WITH TWO DECIMALS; e$.$g$.29\%$ would be entered as $"0\mathrm{.}29"]$

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