Please help me solve my worksheet. Thank you!

Answer each of the following questions completely. When possible to answer using a complete sentence and offering explanation, please do so. There is a total of 15 points possible in the assignment. 1. [5 pts] Chief financial ofcers of U.S. companies were surveyed about areas in which job applicants make mistakes. Here are the areas and the frequency of responses: interview (452}; rsum (297}; cover letter (141); reference checks (143}; interview follow up (113); screening calls (85}. a. Create a bar chart for this information by hand or with a spreadsheet. Make sure everything is labeled. b. Create a pie chart for this information by hand or with a spreadsheet. Make sure everything is labeled. ' _ ' ' __ |__J 2. [10 pts] Helmets and Injuries: The data in the accompanying table is based on data from \"Helmet Use and Risk of Head Injuries in Alpine Skiers and Snowboarders,\" by Sullheim, et al. Journal of the American Medical Association, Vol. 295, No. 8. Head Injuries Not Injured Wore Helmet 96 656 No Helmet 480 2330 a. What is the probability a randomly selected person has a head injury? b. What is the probability a randomly selected person wore a helmet? c. What is the probability a randomly selected person had a head injury or were a helmet? d. What is the probability a randomly selected person did not wear a helmet and was not injured? e. Are the events for helmet use and head injury independent? Prove mathematically and explain