how do i answer these?

The following table is of profit, revenue, and number of employees of 10 companies. Profit US $ billion Revenue/employee No. of Employees US$ Exxon 11.8 96, 180 122800 Royal Dutch 7.4 74,283 105000 British Petroleum 4.3 70,857 56440 Petrofina SA 2.3 67,396 69068 Texao In 3.1 92, 108 29316 Elf Aquitaine 0.93 11,461 83600 ENI 3.1 37,416 80171 Chevron Corp. 3.7 84,625 39367 PDVSA 4.5 84,821 56592 SK 0.12 4,083 30596 a) For the 10 companies, the mean profit per company is $ billion US. (Round answer to one decimal place.) b) The "overall" mean revenue per employee (i.e., for all employees of these firms combined) of the 10 companies is $ US. (Round answer to nearest whole number.) c) The "overall" mean profit per employee is $ US/employee. (Round answer to nearest whole number.)Using the data on the right, find the average sales Avg. of the toy store chains (in $1000)? Chain # of Stores Sales/Store ($ 000) a. The overall average sales per store is $ Toys 'R' Us 144 7,232 (rounded to the nearest whole number.) Child World 79 3,588 Kaybee 368 507 Lionel 55 3,239 b. The median of sales is: c. The overall average sales per chain is (rounded to the nearest integer) is $The following sample data was obtained at 8:00 pm. at a popular downtown restaurant. There were 15 tables occupied at the time. Number of Guests at Table hUI-h-hNN-h-hth-h-hNN Food Bill for 48.75 36.75 90.55 87.45 41.25 83.30 109.40 88.25 93.45 36.50 42.60 105.80 84.65 110.35 83.55 Liquor Bill for Table in $ Table in$ 15.75 26.00 22.90 42.45 14.00 29.75 44.05 21.55 22.00 16.45 18.00 37.57 18.95 43.95 22.50 ROUND all answers to 2 decimal places to reect the nearest cent ()l a) What was the average food bill for the 15 tables? $ b) The mean food bill per table is $ . The standard deviation of the food bills at the 15 mbles is $ The mean liquor bill per table is $ The standard deviation of the liquor bills at the 15 mbles is $ |:. There was more relative variability in the food bill than the liquor bill 0 True O False