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Tomtit [17]
3 years ago
14

There are 10 boys and 12 girls in the tennis club. The coach wants to select two players to practice first. Which statements are

true? Check all that apply.
There is approximately a 27 percent likelihood that one boy and one girl will be chosen to practice first.
There is approximately a 52 percent likelihood that one boy and one girl will be chosen to practice first.
There is approximately a 19 percent likelihood that two boys will be chosen to practice first.
There is approximately a 19 percent likelihood that two girls will be chosen to practice first.
There is approximately a 29 percent likelihood that two girls will be chosen to practice first.
Mathematics
2 answers:
Sidana [21]3 years ago
6 0
Since there are 22 participants all in all. The possible combinations of the two picked for practice first is, 
                               22C2 = 231
The probability of picking one from each gender will be solved through the calculation below.
                              (10C1)x(12C1) / 231 = 40/77
In percentage, the answer would be approximately 52%. Thus, the answer is the first choice. 
Ludmilka [50]3 years ago
5 0
The second, third, and fifth answer are the correct choices.
One girl and one boy= (12C1*10C1)/22C2= about 52%
Two boys= 10C2/22C2= about 19%
Two girls= 12C2/22C2= about 29%
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(-6,4)

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3 years ago
An auto insurance company has 10,000 policyholders. Each policy is defined as: young or old male or female; and married or singl
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Answer:

880

Step-by-step explanation:

This problem a bit annoying, but let's classify the numbers and see where we can get from there:

Total = 10,000

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Old = 7,000 (not young defined as 10,000 - 3,000)

Male = 4,600

Female = 5,400

Married = 7,000

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Young Males = 1,320

Young Females = 3,000 (young) - 1,320  = 1,680

Married Males = 3,010

Married Females = 7,000 - 3,010 = 2,990

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Young Married Males = 600

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Young Female Single = ?

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3 years ago
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One good example of a situation that can be modeled by this Polynomial Graph is the price-time relationship between currency pairs being traded on the Foreign Exchange Market.

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A polynomial parameter graph is essentially a smooth continuous curve.

Although the forex graph attached has sharp undulations, when regressed and viewed via Polynomial Regression Indicators, they exhibit strong polynomial qualities that meet the requirements of the definition above.

It is to be noted that the Y-Axis is indicative of the price of the currency pairs (which could be any currency against another) and the X-Axis expresses time. See the attached graphs for a better picture.

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Answer:

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Step-by-step explanation:

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BC=a\\\\AB=4\\\\AC=3\\\\m\angle A=32^o\to\cos32^o\approx0.848

Substitute:

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