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Naily [24]
2 years ago
11

Find the rule. Solve for n. Х Y 3 5 4 7 n 11 8 15

Mathematics
1 answer:
fredd [130]2 years ago
6 0

Answer:

6

Step-by-step explanation:

This looks like a linear function.

From the first two points, we get the equation to be y=2x-1.

So to find n, 11=2n-1.

12=2n

n=6

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The answer is "\bold{(7.1-8.3) \pm 1.665 \sqrt{\frac{(1.7)^2}{50}+\frac{(1.9)^2}{39}} }\\\\"

Step-by-step explanation:

Given values:

\bar{x_1}=7.1\\\\\bar{x_2}=8.3\\\\s_1=1.7\\\\s_2=1.9\\\\n_1=50\\\\n_2=39

Using formula:

\to (\bar{x_1} -\bar{x_2}) \pm t \sqrt{\frac{(s_1)^2}{n_1}+\frac{(s_1)^2}{n_2}} \\\\

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\to (7.1-8.3) \pm 1.665 \sqrt{\frac{(1.7)^2}{50}+\frac{(1.9)^2}{39}} \\\\

4 0
3 years ago
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Answer:

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7 0
3 years ago
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7 0
3 years ago
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