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expeople1 [14]
3 years ago
7

Plz help it’s urgent!!! :) ❤️❤️❤️

Mathematics
1 answer:
Y_Kistochka [10]3 years ago
7 0

Answer:

Dobereiner's Triads are groups of three elements arranged in such a way that the atomic weight of the middle element is almost the average of the other two. The elements of triad have almost similar properties

no

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What is the equation of the line that is parallel to the given line and passes through the point (2, 3)?
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hichkok12 [17]

Answer:

50 percent

Step-by-step explanation:

Mean = 39

\sigma = 3

Using the 68-95-99.7 rule, 68% of the data falls within first  standard deviation of mean

(\mu -1 \sigma, \mu +1\sigma)=(39-3,39+3)=(36,42)

95% data falls within two standard deviation of mean

(\mu -2 \sigma, \mu +2\sigma)=(39-2(3),39+2(3))=(33,45)

99.7% data falls within 3 standard deviation of mean

(\mu -3 \sigma, \mu +3\sigma)=(39-3(3),39+3(3))=(30,48)

Refer the attached graph

The curve is normally distributed

Now the the percentage of light bulb replacement requests numbering between 39 and 48 = 34%+13.5%+2.5% = 50%

Hence  the approximate percentage of light bulb replacement requests numbering between 39 and 48 is 50 .

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