Australians aged between 15 to 54 years have been relying more on digital and social media in every aspect of their daily lives during last year. A researcher found that the average daily time spend by Australians aged between 15 to 54 years on the Internet is normally distributed with a mean of 4.55 hours and a standard deyiation of 19.?9 minutes. 1. {1 mark] What is the probability that a randomly selected Australian between 15 to 54 years spends less than 5.52 hours per day using the Internet? 4:4de 2. {2 marks] What is the probability that a randomly selected Australian between 15 to 54 years spends more than 4.54 hours per day using the Internet? {:4de- 3. {2 marks] What is the probability that a randomly selected Australian between 15 to 54 years spends between 4.?4 and 5.15 hours per day using the Internet? {4dp] 4. {1 mark] If the hours spent using the Internet for an Australian between 15 to 54 years was on the Ir'Qrth percentile, how many hours per day would she spend using the Internet? {idpl hours 5. {2 marks] In a sample of 22 Australians between 15 to 54 yearsII horIrII many of them would be expected to spend more than 4.54 hours per day using the Internet? {2 dp}