Explain how possessing a positive attitude can increase your chances of achieving success in the ...

Answers will vary but should include some or all of the following points:
Positive people are more pleasant to be around. No one wants to spend time with someone who brings out the worst in everyone. Positive attitudes include things such as willingness to try new things, willingness to upgrade your skills, willingness to accept a challenge, being creative, multitasking, flexibility, productivity, willingness to middle manage, being self-motivated, avoiding complaints and excuses, being responsible, accepting responsibility for your mistakes, understanding your limitations, and socializing. These are valuable and important traits in an employee, and if you display them, everyone around you in your workplace will appreciate you a lot more.