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2 years ago

10

Determine if the sequence below is arithmetic or geometric and determine the common difference / ratio in the simplest form 15,1

1,7

1 answer:

Tatiana [17]2 years ago

6 0

Step-by-step explanation:

the sequence is arithmetic due to the common difference that is equal

d=11-15=7-11=-4

a(n) = a1 +(n-1)d

a1=15

Then :

a(n) = 15+(n-1)-4

hope this helps

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You need to make a series of equations from what you are given first. I am going to use the first letter of each of the names to represent the length of that persons wire.
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1/2(3c)=2/5d
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Nadusha1986 [10]

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<h3>What is a confidence interval of proportions?</h3>

A confidence interval of proportions is given by:

$\pi \pm z\sqrt{\frac{\pi(1-\pi)}{n}}$

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n is the sample size.

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The lower limit of this interval is:

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The upper limit of this interval is:

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The 99% confidence interval for the proportion of all U. S. Adults who would include the 9/11 attacks on their list of 10 historic events is (0.7458, 0.7942). It means that we are 99% sure that the true proportion for all U.S. adults is between these two bounds.

More can be learned about the z-distribution at brainly.com/question/25890103

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