3 years ago

In a normal distribution, what percentage of the data falls within 3 standard deviations of the mean?

1 answer:

4 0

99% using the 68- 95- 99 rule
For these kind of problems, it is always a good idea to just draw out a normal distribution curve.

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Step-by-step explanation:

point slope formula: y-y1=m(x-x1)

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input numbers

so slope:

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(-)×(-)=+

(+)×(-)=(-)

so m=17/1

m=17

now point slope

y--8=17(x--8)

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y and 8 are adding so we need to subtract on both sides

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Step-by-step explanation:

when there is no fixing cost:

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when there is fixing cost (0ne time): 12x-(1400+135)

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Step-by-step explanation:

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Step-by-step explanation:

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yes it is cause the answers 258

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