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Robotics manufacturers can design mobility features in one of several ways. Robots can have legs, wheels, both legs and wheels, or no legs or wheels. Using a random sample of 106 robots, researchers found that 63 had legs only, 20 had wheels only, 8 had both legs and wheels, and 15 had no legs or wheels. What's the relative frequency of robots with both legs and wheels? 

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[tex]\text{\huge{\red{\underline{SOLUTION}}}}[/tex]

[tex]\textbf{\red{Total robots = 106}}[/tex]

[tex]\textbf{\red{Number of robots with both legs}}\\ \textbf{\red{and wheels = 8}} [/tex]

[tex]\textbf{ \red{Relative frequency} }= \red {\frac{8}{106} \times 100 = 7.55 }[/tex]
 
[tex] \textbf{ \red{Relative frequency is 7.55 percent}}[/tex]

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