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2 years ago

At stp both diamond and graphite are solids composed of carbon atoms. These solids have.

1 answer:

7 0

These solids, diamond and graphite are first naturally occurring inorganic substances and have an orderly internal structure and characteristic chemical composition, crystal form, and physical properties.

<h3>Standard temperature and pressure of diamond and graphite</h3>

At standard temperature and pressure, the two minerals; diamond and graphite which are both composed of carbon atoms are Allotropes of Carbon. Additionally, peculiar difference between them exists in the delocalization of electrons in one as opposed to the other.

Similarly, these solids are minerals and are naturally occurring inorganic element or compound having unique structures.

Read more on Allotropes of Carbon;

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the distribution of lengths of salmon from a certain river is approximately normal with standard deviation 3.5 inches. if 10 per

juin [17]

Complete question;

<em>The distribution of lengths of salmon from a certain river is approximately normal with a standard deviation of 3.5 inches. If 10 percent of salmon are longer than 30 inches, which of the following is closest to the mean of the distribution? 26 inches A 28 inches B 30 inches C 33 inches D 34 inches</em>

Option B is correct. The value that is closest to the mean of the distribution is 30inches.

The formula for calculating the z-score is expressed as:

$z=\frac{ x-\mu}{\sigma}$

Given the following parameters

$\sigma = 3.5\\x = 26in$

If 10 percent of salmon are longer than 30 inches, then:

P(x>30) = 0.1

Using the z table to get the value corresponding to the mean area 0.1.

The required z-score will be -1.285

Substitute the resulting parameters into the formula to get the mean of the distribution.

$z=\frac{x-\mu}{\sigma}\\-1.285=\frac{26-\mu}{3.5}\\-1.285 \times 3.5 = 26 - \mu\\ -4.4975 = 26 - \mu\\\mu = 26 + 4.4975\\\mu = 30.4975\\\mu \approx 30in$

Hence the value that is closest to the mean of the distribution is 30inches.

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1 year ago

What is the least amount of money a student will receive when participating in work study ?

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the answer is b. Federal minimum

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2 years ago

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Which statement describes the use of a flow chart

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Answer: A diagram that represents a process

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3 years ago

The operation manager at a tire manufacturing company believes that the mean mileage of a tire is21,009 miles with a variance of

max2010maxim [7]

The probability that the sample mean would differ from the population mean by less than 655 miles in a sample of 79 tires if the manager is correct is = 0.9805.

<h3>

What is the calculation for the above?</h3>

P ( $\bar{x}$ < 655) ≡ P [ |( $\bar{x}$ - μ)/√(σ²/n) | <655/√(6,220,036/ 79)]

= P (| Z | < 3.55)

= P - 3.55 < Z < 3.55) Using the z -score table

= 0.9998 - 0.0193

= 0.9805

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1 year ago

If you were interested in whether a company’s operations were profitable, which statement would be the most helpful?.

Lady bird [3.3K]

Answer:

look into the company's positive number

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2 years ago