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4 years ago

What is the greatest common factor for 18 & 130

2 answers:

6 0

$18|2\\.\ 9|3\\.\ 3|3\\.\ 1|\\\\18=\fbox2\times3\times3\\--------------\\130|2\\.\ 65|5\\.\ 13|13\\.\ \ 1|\\\\130=\fbox2\times5\times13\\---------------\\\\GCF(18;\ 130)=\fbox2$

Allisa [31]4 years ago

5 0

3 3 2 for 18 and 5 2 13 for 130 so gcf is 2

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4 years ago

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Mean : $\mu = 246.9$

Standard deviation : $\sigma = 0.49$

Empirical rule :

1 ) 68% of the data lies within 1 standard deviation of mean

This means 68% of data lies between: $\mu-\sigma$ to $\mu+\sigma$

2) 95% of the data lies within 2 standard deviation of mean

This means 95% of data lies between: $\mu-2\sigma$ to $\mu+2\sigma$

3) 99.7% of the data lies within 3 standard deviation of mean

This means 99.7% of data lies between: $\mu-3\sigma$ to $\mu+3\sigma$

Now to find the approximate percentage of women with platelet counts within 1 standard deviation of the mean, or between 177.6 and 316. 2

Use rule 1: $\mu-\sigma$ to $\mu+\sigma$

$246.9-69.3$ to $246.9+69.3$

$177.6$ to $316.2$

So, according to rule 1, 68% of the data lies within 1 standard deviation of mean i.e. 68% of the data lies between 177.6 and 316.2.

Now to find the approximate percentage of women with platelet counts between 39.0 and 454.8?

Use rule 3: $\mu-3\sigma$ to $\mu+3\sigma$

$\mu-3\sigma$ to $\mu+3\sigma$

$39$ to $454.8$

So, According to rule 3 : 99.7% of the data lies within 3 standard deviation of mean i.e. 99.7% of data lies between 39.0 and 454.8

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4 years ago

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Answer:

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3 years ago

Im really stuck on this............

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Answer:

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