7. Using the statistics provided for the average annual income per person for 100 countries from around the world in 2022.(photos) (10 marks)

a) Determine the mean and sample standard deviation for the data set.

b) Hungary has an average annual income of $8613, what percentile does this place Hungary in?

c) establish a relative histogram and frequence polygon for the data using Geogebra (https://www.geogebra.org) . Submit a screenshot of the graph.

d) Hungary's average income is the 68^thhighest of the 100 countries listed. What percentile does this actually place them in?

e) Give reasons why the answers in parts b) and d) don'tmatch

A B 1 Country Average Income 2 DR Congo 548 3 Madagascar 567 A Burundi 640 5 Malawi 733 6 Uzbekistan 752 7 Guinea Bissau 797 8 Mali 861 9 Central African 891 10 Rwanda 925 11 Niger 937 12 Liberia 945 13 Mozambique 947 14 Turkmenistan 963 15 Togo 964 16 Benin 989 17 Tanzania 992 18 Burkina Faso 1002 19 Sierra Leone 1004 20 Nigeria 1021 21 Guinea 1036 22 Zambia 1045 23 Angola 1066 24 Ethiopia 1107 25 South Sudan 1121 26 Senegal 1137 27 Timor Leste 1147 28 Papua New Gui 1162 29 Uganda 1166 30 Chad 1182 31 Kenya 1197 32 India 1314 33 Bangladesh 1414 34 Nepal 1428 35 Zimbabwe 1429 36 Yemen 1503 37 Haiti 1540 38 Sudan 1592 39 Egypt 1847 Sheet1 + Ready