We have
Total number of plane crashes = 379 + 74 + 68 + 283 + 527 = 1331
Then, relative frequency distribution:
pilot error =
[tex]\frac{379}{1331}\cdot100=28.5[/tex]
other human error =
[tex]\frac{74}{1331}\cdot100=5.5[/tex]
weather =
[tex]\frac{68}{1331}\cdot100=5.1[/tex]
mechanical problems =
[tex]\frac{283}{1331}\cdot100=21.3[/tex]
sabotage =
[tex]\frac{527}{1331}\cdot100=39.6[/tex]
Answer:
pilot error 28.5%
human error 5.5%
weather 5.1%
mechanical problems 21.3%
sabotage 39.6%
