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3 years ago

12

Given: 1/3 x+y= 15.

1 answer:

storchak [24]3 years ago

6 0

Answer:

B) [(-3, 16), (0, 15), (3, 14)]

Step-by-step explanation:

Because 1/3(-3)+16=-1+16=15,

1/3(0)+15=0+15=15,

1/3(3)+y=1+14=15.

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A box of tickets has an average of 420; the SD is 84. If we draw at random (with replacement) 50 times and compute the average o

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Answer:

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Standard Error = 11.88

Step-by-step explanation:

Given

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This is calculated as:

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So, we have:

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Solving (b): The standard error

This is calculated as:

$SE=\frac{\sigma}{\sqrt n}$

So, we have:

$SE=\frac{84}{\sqrt {50}}$

Using the calculator, we have:

$SE=11.88$

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Step-by-step explanation:

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