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makkiz [27]
2 years ago
11

What percentage of the data falls outside 1 standard deviation of the mean?

Mathematics
1 answer:
Alik [6]2 years ago
3 0

We all know about the bell curve i.e. normal distribution curve. It is centered about the mean and spread equally on each side.

We describe the area of the curve with the help of standard deviations.

With in 1 standard deviation about the mean i.e. from -1 s.d. (left of mean) to +1 s.d. (right of mean), it covers 68% of the total area of curve.

So, the data that falls outside 1 standard deviation of the mean would be equal to (100% - 68%) i.e. 32%.

So, 32% is the final answer.

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The sum of the first 200 terms of the arithmetic sequence with initial term 2 and common difference 3 is
Svetradugi [14.3K]

Answer: D. 60100

Step-by-step explanation:

The formula for determining the sum of n terms of an arithmetic sequence is expressed as

Sn = n/2[2a + (n - 1)d]

Where

n represents the number of terms in the arithmetic sequence.

d represents the common difference of the terms in the arithmetic sequence.

a represents the first term of the arithmetic sequence.

From the information given,

n = 200 terms

a = 2

d = 3

Therefore, the sum of the first 200 terms, S200 would be

S200 = 200/2[2 × 2 + (200 - 1)3]

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S200 = 100 × 601 = 60100

8 0
3 years ago
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4 0
2 years ago
Give an example of a system that has no solutions
Anna11 [10]

Answer:

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Step-by-step explanation:

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5 0
3 years ago
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