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3 years ago

What do I have to multiply 9 by to get 450

Mathematics

1 answer:

miv72 [106K]3 years ago

3 0

Lets take the number you are looking for as 'x'

9x = 450

Divde by 9

9x - 450
/9 /9

x = 50

Therefore,

50 × 9 = 450

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The confidence interval would be
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We use the formula
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First we find the z-score associated with this level of confidence:
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Using a z-table (http://www.z-table.com) we see that this value is associated with a z-score of 1.96.

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