Question1 [Marks] A Human Resource Department of a company recorded data of seven (7) randomly selected employees as below: Hours Name Ada Bob Charlie David Ello Fring George Alice John Pablo Richard Michael Leonardo Julia Jennyfer Salary 9 7 10 7 11 16 12 8 15 10 9 15 Experi- ence 3 2 3 2 4 6 4 2 5 6 4 5 8 5 3 4 8 15 4 3 6 5 4 2 13 15 5 5 7 7 16 8 1) Draw the boxplot of the variable Hours". [1.5 Marks) 2) Which graph could show if Salary and Experience are correlated? Draw it and answer to the question: Is there correlation between Salary and Experience? Explain. [1.5 Marks] 3) Create the distance matrix choose a method and justify your choice. Who are the employees the most similar? [2 marks] Note: write all calculations steps. Question 2: [5 Marks] Given the dataset below, during data recording, some issues happened. # 1 2 3 4 ... Gender M M F F M M Age 23 55 32 22 5 25 Hours Per Day Preferred Browser Preferred Search Engine Facebook Twitter 1 Firefox Google Y Chrome Google Y 2 Yahoo Y 6 Firefox Google 99 3 Internet Explorer Bing Y 4 Internet Explorer Google N Firefox ZZZZ 6 1) Determine the type of every attribute as binary, nominal, or numeric. Provide the definition domain of every attribute: e.g. Gender = [M, F). Hours_Per_Day = [1, 6), etc. [1.5 Marks) 2) Determine three (3) tuples containing data that needs cleaning and precise the issue by ticking the right box in the table below: [2 marks] Noisy data Outlier Missing data Tuple # 3) Explain how to handle each issue and suggest a corrected data. [1.5 Marks] End of assignment