Two Simple Statistics Questions (Need within an hour)

    My professor gave us two extra-credit questions on last class. I need them before today's class in the morning (Pacific Daylight Time). I need full procedures. You may write down the answers and send me the photos. Since those two questions are accomanying with the professor's lecture, I post all details he talked about during the class in the attached file. If you have any questions, please ask me for extra materials. Thank you.