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2 years ago

6

CARMEN HAS 18 CONNECTING CUBES. sHE WANTS TO MODEL A HOUSE SHAPED LIKE A RECTANGLE . if THE MODEL HAS A HEIGHT OF ONE CONNECTING

CUBE, HOW MANY DIFFERENT WAYS CAN CARMEN MODEL THE HOUSE USING ALL 18 CONNECTING CUBES.

2 answers:

Tems11 [23]2 years ago

7 0

1 by 18
2 by 9
3 by 6
So 3 ways

iragen [17]2 years ago

5 0

You can divide 18 three ways, 18 divided by 18 is 1, 18 divided by 3 is 6, and 18 divided by 9 is 2, so 3 different ways

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The 90% confidence interval for the true difference between the population proportions is [ - 0.0908, - 0.0092]

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z score for 90% confidence interval = 1.645

Here, the confidence interval formula :

( $P_{1} -P_{2}$ ) ± z $\sqrt{\frac{P_{1}(1-P_{1}) }{N_{1} }+ \frac{P_{2}(1-P_{2}) }{N_{2} } }$

Substituting the values, we get

(0.33 - 0.28) ± 1.645 $\sqrt{\frac{0.33(1-0.33)}{731}+\frac{0.28(1-0.28)}{644} }$

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Confidence interval:

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The confidence interval for the true difference between the population proportions is [ - 0.0908, - 0.0092]

Learn more about confidence interval here:brainly.com/question/17421912

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