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Paha777 [63]
2 years ago
15

What is the approximate sum of this series? multiple choice

Mathematics
2 answers:
Romashka [77]2 years ago
6 0

Answer:

D)134.83

Step-by-step explanation:

Sorry I don't know how to explain it here but the answer is D and I'm 100% sure

frutty [35]2 years ago
3 0
D: 134.83 is the right answer because I put that as my answer and got it correct.
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A health research institute collects information from 20 individuals on the number of years they have spent smoking cigarettes,
olga55 [171]

The correlation coefficient of the health research institute data measures the relationship between the age and the years of the smokers

The correlation coefficient is 0.53

<h3>How to calculate the correlation coefficient</h3>

The correlation coefficient (r) is calculated as:

r = \frac{n(\sum xy) - \sum x \sum y}{\sqrt{[n \sum x^2 - (\sum x)^2][n\sum y^2 - (\sum y)^2}}

Using the given parameters, we have:

r = \frac{20 *8249 - 1257* 116}{\sqrt{[20 * 98823 - 1257^2][20 * 836 - 116^2}}

Evaluate the exponents

r = \frac{20 *8249 - 1257* 116}{\sqrt{[20 * 98823 - 1580049][20 * 836 - 13456}}

Evaluate the products

r = \frac{164980 - 145812}{\sqrt{[1976460 - 1580049][16720 - 13456}}

Evaluate the differences

r = \frac{19168}{\sqrt{[396411*3264}}

Evaluate the product

r = \frac{19168}{\sqrt{1293885504}}

Evaluate the root

r = \frac{19168}{35970.6}

Evaluate the quotient

r = 0.53

Hence, the correlation coefficient is 0.53

Read more about correlation coefficient at:

brainly.com/question/1564293

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2 years ago
Please help!!!
kifflom [539]

Answer: If I am correct, I do believe that A is equal to F, meaning that the angle of A, which is 100°, is also the angle of F.

Step-by-step explanation:

Sorry if I am wrong I'm new at this.

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Answer:

Depends on how much it costs...

Step-by-step explanation:

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