A garage sells three types of fuel: unleaded petrol, diesel and tractor diesel. The probability that...

A garage sells three types of fuel: unleaded petrol, diesel and tractor diesel. The probability that a randomly selected customer will buy a particular fuel is shown in the table:
Fuel Probability
Unleaded 0.40
Diesel 0.45
Tractor Diesel 0.15
1. Find the probability that of two randomly selected customers: (i) Both will buy diesel (ii) Exactly one will buy diesel 2. Find the probability that of three randomly selected customers: (i) All will buy unleaded (ii) Exactly two will buy diesel (ii) One will buy tractor diesel, one will buy unleaded and one will buy diesel

2. A mechanical device has a wearout time distributed normally with a mean of 1100 hours and a standard deviation of 50 hours. Find the values that constitute the central 95% of the wearout times.

Solutions

Expert Solution

orchestra answered 1 year ago

Next > < Previous

Related Solutions

The effect of three different lubricating oils on fuel economy in diesel truck engines is being...

The effect of three different lubricating oils on fuel economy in diesel truck engines is being studied. Fuel economy is measured using brake-specific fuel consumption after the engine has been running for 15 minutes. Five different truck engines are available for the study, and the experimenters conduct the following randomized complete block design. Truck Oil 1 2 3 4 5 1 0.502 0.634 0.491 0.329 0.512 2 0.534 0.675 0.520 0.435 0.540 3 0.513 0.595 0.489 0.400 0.511 (a)...

An experiment reported in Popular Science compared fuel economies for two types of similarly equipped diesel mini-trucks.

An experiment reported in Popular Science compared fuel economies for two types of similarly equipped diesel mini-trucks. Let us suppose that 12 Volkswagen and 10 Toyota trucks were tested in 90- kilometer-per-hour steady-paced trials. If the 12 Volkswagen trucks averaged 16 kilometers per liter with a standard deviation of 1.0 kilometer per liter and the 10 Toyota trucks averaged 11 kilometers per liter with a standard deviation of 0.8 kilometer per liter, construct a 90% confidence interval for the difference...

Using the thermodynamic cycles, explain the difference between the heat engine (Carnot cycle) and Otto and Diesel engines. Why do Diesel engines require different types of fuel than the regular Otto Engine?

Problem 5 CH5/5ptsUsing the thermodynamic cycles, explain the difference between the heat engine (Carnot cycle) and Otto and Diesel engines. Why do Diesel engines require different types of fuel than the regular Otto Engine?

Taco Smell sells only tacos. They offer three types of tortillas, four types of meat, four...

Taco Smell sells only tacos. They offer three types of tortillas, four types of meat, four types of cheese and seven types of salsa. If you must choose exactly one of each for your taco, how many different kinds of tacos can you order at Taco Smell?

Barram, Inc. sells specialty golf clubs. He sells three different types of drivers; the Bear, the...

Barram, Inc. sells specialty golf clubs. He sells three different types of drivers; the Bear, the Lion, and the Eagle. For the next year, Barram estimates he will sell 16,000 units of the Bear, which has a variable cost of $35/unit, 24,000 units of the Lion, which has a variable cost of $40/unit, and 40,000 units of the Eagle, which has a variable cost of $55/unit. All drivers are sold for $100 per driver. He has annual fixed costs of...

Variable and Absorption Costing—Three Products Winslow Inc. manufactures and sells three types of shoes. The income...

Variable and Absorption Costing—Three Products Winslow Inc. manufactures and sells three types of shoes. The income statements prepared under the absorption costing method for the three shoes are as follows: Winslow Inc. Product Income Statements—Absorption Costing For the Year Ended December 31, 20Y1 Cross Training Shoes Golf Shoes Running Shoes Revenues $559,800 $324,700 $269,500 Cost of goods sold 291,100 159,100 180,600 Gross profit $268,700 $165,600 $88,900 Selling and administrative expenses 231,100 119,200 148,500 Income (loss) from operations $37,600 $46,400 $(59,600)...

Variable and Absorption Costing—Three Products Winslow Inc. manufactures and sells three types of shoes. The income...

Variable and Absorption Costing—Three Products Winslow Inc. manufactures and sells three types of shoes. The income statements prepared under the absorption costing method for the three shoes are as follows: Winslow Inc. Product Income Statements—Absorption Costing For the Year Ended December 31, 20Y1 Cross Training Shoes Golf Shoes Running Shoes Revenues $340,200 $200,700 $172,600 Cost of goods sold (176,900) (98,300) (115,600) Gross profit $163,300 $102,400 $57,000 Selling and administrative expenses (140,400) (73,700) (95,200) Operating income $22,900 $28,700 $(38,200) In addition,...

Variable and Absorption Costing—Three Products Winslow Inc. manufactures and sells three types of shoes. The income...

Variable and Absorption Costing—Three Products Winslow Inc. manufactures and sells three types of shoes. The income statements prepared under the absorption costing method for the three shoes are as follows: Winslow Inc. Product Income Statements—Absorption Costing For the Year Ended December 31, 20Y1 Cross Training Shoes Golf Shoes Running Shoes Revenues $533,200 $314,600 $270,600 Cost of goods sold (277,300) (154,200) (181,300) Gross profit $255,900 $160,400 $89,300 Selling and administrative expenses (220,100) (115,500) (149,100) Operating income $35,800 $44,900 $(59,800) In addition,...

Variable and Absorption Costing—Three Products Winslow Inc. manufactures and sells three types of shoes. The income...

Variable and Absorption Costing—Three Products Winslow Inc. manufactures and sells three types of shoes. The income statements prepared under the absorption costing method for the three shoes are as follows: Winslow Inc. Product Income Statements—Absorption Costing For the Year Ended December 31, 20Y1 Cross Training Shoes Golf Shoes Running Shoes Revenues $472,600 $297,700 $250,100 Cost of goods sold 245,800 145,900 167,600 Gross profit $226,800 $151,800 $82,500 Selling and administrative expenses 195,000 109,300 137,800 Income (loss) from operations $31,800 $42,500 $(55,300)...

Variable and Absorption Costing—Three Products Winslow Inc. manufactures and sells three types of shoes. The income...

Variable and Absorption Costing—Three Products Winslow Inc. manufactures and sells three types of shoes. The income statements prepared under the absorption costing method for the three shoes are as follows: Winslow Inc. Product Income Statements—Absorption Costing For the Year Ended December 31, 20Y1 Cross Training Shoes Golf Shoes Running Shoes Revenues $519,900 $296,300 $257,800 Cost of goods sold (270,300) (145,200) (172,700) Gross profit $249,600 $151,100 $85,100 Selling and administrative expenses (214,700) (108,800) (142,100) Operating income $34,900 $42,300 $(57,000) In addition,...

Subjects