7. A random sample of Sydney residents were surveyed to study the relationship between age group and the use of social media Instagram. Age group Use Instagram Do not use instagram TOTAL 18-24 25 - 30 31 - 49 50-64 59 3 54 12 4 132 20 44 66 43 38 211 79 47 120 55 42 343 65+ TOTAL What proportion of the sample use Instagram? [Answer and show working here] 8. Refer to the two-way table in the previous question. Out of Sydney residents who do not use Instagram, what is the proportion of the age group 18 - 24? [Answer and show workings here]