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Anestetic [448]
2 years ago
10

Exercise: A lot consists of 20 defective and 80 non-defective items from which two items are chosen without replacement. Events

A & B are defined as A- (the first stens chosen is defective), B (the second item chosen is defective) a) What is the probability that both items are defective? b) What is the probability that the second item is defective?
​
Business
1 answer:
Inessa05 [86]2 years ago
5 0

The probability that both item is defective are  3.84%

The probability that the second is defective is  20%

<h3> What is the probability that both items are defective?</h3>

a) Remember that the question says they are drawn without replacement

hence

(20/100)*(19/99)

= 19/495

= 0.03838383

= 3.84%

b. What is the probability that the second item is defective?

(20/100)*(19/99) + (80/100)*(20/99)

= 0.03838383 + 0.1616

= 0.199999

= 0.2

= 20 percent

Read more on probability here: brainly.com/question/24756209

#SPJ1

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World City: dominant city in terms of its role in the global political economy. Not the world's biggest city in terms of population or industrial output, but rather centers of strategic control of the world economy.

Explanation:

The financial centre, the stock market and large financial institutions can occur. Trade and economic dominance of a large area. Port city and container processing centres. There is tremendous everyday and strategic decision-making capacity.

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5 0
3 years ago
If fixed costs are $1,464,000, the unit selling price is $220, and the unit variable costs are $114, what are the break-even sal
77julia77 [94]

Answer:

d.14,249 units

Explanation:

Break-even sales (units) = Fixed Costs ÷ Contribution per unit

Where,

Contribution per unit = Unit Selling Price - Unit Variable Cost

                                   = $106

therefore,

Break-even sales (units) = ($1,464,000 + $46,400) ÷ $106

                                        = 14,249

thus,

the break-even sales (units) if fixed costs are increased by $46,400 is 14,249 units.

4 0
3 years ago
A service provided by -e-government that requires access to the Internet is _____.
Serjik [45]

Answer:

B. E-tax returns

Explanation:

E-tax returns is the electronic filing of tax returns via the internet.  It entails online submission of pre-approved tax return forms available on the tax authority's website.

In recent years, governments have put measures to facilitate e-returns. It has simplified the process making it popular among taxpayers. Electronic tax filing has have contributed to having a high number of citizens registering as taxpayers.

8 0
3 years ago
Which of the following bank services pays the customer compound interest?
Gnom [1K]
Based on the given question above, the correct answer for this would be option C. The bank service that pays the customer compound interest is a saving account. <span>A </span>savings account<span> is an interest-bearing deposit </span>account<span> held at a </span><span>bank. Hope this is the answer that you are looking for. Have a great day!</span>
4 0
3 years ago
Sela traveled from her home in Flagstaff to San Francisco to seek specialized medical care. Because she was unable to travel​ al
egoroff_w [7]

Answer:

The total medical expenses deductible before the​ 10% limitation is 2090

Explanation:

Solution

Recall that:

The Total expenses included is stated as follows:

Th Hotel room  is = $150 * two rooms * three nights

Mileage of = $900,

Miles = 1000

Doctor's bill ins an Francisco = 1,600

Now,

To next step is to find the total medical expenses deductible before the​ 10% limitation is given as follows:

Doctor's bill = 1,600

The total expenses  i hotel room is calculated as :150 * 1 *3 = 450

So,

The total = 1600 + 450 = 2050

It is also important to know that only 10% of the expense stay for the accompanied person is permitted

Therefore,

450*10% =45

Total 2050+45 = 2090

5 0
4 years ago
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