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sleet_krkn [62]
4 years ago
13

What is 3 times 3 please answer so i can prove my sister wrong

Mathematics
1 answer:
coldgirl [10]4 years ago
7 0

Answer:

9

Step-by-step explanation:

3 times 3 is the same as saying

3 + 3 + 3  which equals 9

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Answer:

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Step-by-step explanation:

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#we then calculate the confidence interval of sample size =50 and of similar mean and standard deviation:

\bar X\pm z\frac{s}{\sqrt{n}}\\\\\\=\bar X\pm z_{0.05/2}\times\frac{s}{\sqrt{n}}\\\\\\=\bar X\pm1.960\times \frac{s}{\sqrt{50}}\\\\\\\\=\bar X\pm0.2772s

#Notice that the smaller sample(n=50) has a narrower confidence interval.

Hence, decreasing the sample size decreases the width of the confidence interval.

6 0
3 years ago
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3 feet deep for 5 feet high

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Which of the following statements are equivalent to the statement "price increased by 100%"?
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