4. A sample of light trucks using diesel fuel revealed the following distribution based on fuel efficiency, i.e., litres per 100 km Number of Trucks 2 Litres/100km 6 to under 9 9 to under 12 9 12 to under 15 15 to under 18 18 to under 21 21 to under 24 5 10 81 3 What is the arithmetic mean in litres per 100 km? 5. Listed below are the commuting distances in kilometers, of students attending college for the first year. 5.5 6.37.5 4.3 6.8 4.6 4.6 8.2 7.8 9.4 7.4 5.3 5.3 5.4 a. What is the arithmetic mean distance travelled? b. What is the median distance travelled c. What is the model distance travelled? PART :5 First Shot Photography Stere has the following trial balance at their year-end, December 31, 2020. First Shot Photography Store Trial Balance For the year ended December 31, 2020 Accounts Payable $40,000 Accounts receivable $85.000 Accumulated amortization, office equipment 10,000 Accumulated amortization, store cash register 3,000 Advertising expense 3,500 Amortization expense, office equipment 17,000 Amortization expense, store cash register 7,000 Sales Discounts 1,800 Cash 14.000 Cost of goods sold 216,900 Equipment 115,000 Insurance expense 7,500 Interest expense 1,400 Screen, capital 303,000 Screen, withdrawals 2,100 Inventory 219.000 Notes payable 5,000 Rent expense, office 15,000 Rent expense, sales 5.000 Rent revenue 2.200 Salaries expense, office 13,000 Salaries expense, selling 12,000 Sales 405,000 Sales returns and allowances 20,000 Supplies 8,000 Supplies expense, store 5,000 Calculate NET INCOME for 2020 fiscal year