According to a survey of restaurant owners in the United States by Must-Have Menus, 77% of restaurant owners believe that they need to use social media as a marketing tool. A different survey by national restaurant owners revealed that 80% of restaurant owners started their who started their careers at entry-level positions believe that they need to use social media as a marketing tool. Assuming that these percentages apply to all restaurant owners, if a restaurant owner is randomly selected, determine the following probabilities:
a. The owner believes that he/she needs to use social media as a marketing tool and started his/her career at an entry-level position.
b. The owner either believes that he/she needs to use social media as a marketing tool or he/she started his/her career at an entry-level position.
c. The owner does not believe that he/she needs to use social media as a marketing tool, given that he/she started his/her career at an entry-level position.
d. The owner believes that he/she needs to use social media as a marketing tool, given that he/she did not start his/her career at an entry-level position.
e. The owner did not start his/her career at an entry-level position, given that he/she does not believe he/she needs to use social media as a marketing tool.