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shusha [124]
3 years ago
9

What is the rule for the function represented by: (0,-2), (1, -1), (2,2), (3,7)? Explain.

Mathematics
1 answer:
wariber [46]3 years ago
3 0
To be a function all the x’s must be different. That is a function
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Murrr4er [49]

Answer:

The number of weeks required = 216 weeks

Step-by-step explanation:

Given that:

Margin of Error E = 200

Confidence interval = 95% = 0.95

Level of SIgnificance  = 1 - C.I

= 1 - 0.95

= 0.05

Standard deviation = 1500

The Critical value for Z :

Z_{\alpha/2} =Z_{0.05/2}  \\ \\  = Z_{0.025} =  1.96

The number of weeks( i.e the sample size (n) ) required is :

n = (\dfrac{Z_{\alpha/2} \times \sigma}{E})^2

n = (\dfrac{1.96 \times 1500}{200})^2

n = (14.7)^2

n = 216.09

n ≅ 216 weeks

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