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2 years ago

I really need help with this! I’ll give out brainliest

Mathematics

1 answer:

trapecia [35]2 years ago

3 0

Answer:

a)yes

b)j+j+k+k+k

c) 5*4+3=20+3=23

d) 3*2+2*3=6+6=12

Step-by-step explanation:

a)Jorge wrote x as many times as there are segments, and also added the last segment, which is 3. so if you look at the graph, you can see that Jorge is correct.

sorry, I'm bad at explaining :(

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Darya [45]

Answer:

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Step-by-step explanation:

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3 years ago

An important factor in selling a residential property is the number of times real estate, agents show a home. A sample of 21 hom

Natalka [10]

Using the t-distribution to build the 99% confidence interval, it is found that:

The margin of error is of 3.64.

The 99% confidence interval for the population mean is (19.36, 26.64).

<h3>What is a t-distribution confidence interval?</h3>

The confidence interval is:

$\overline{x} \pm t\frac{s}{\sqrt{n}}$

In which:

$\overline{x}$ is the sample mean.

t is the critical value.

n is the sample size.

s is the standard deviation for the sample.

The critical value, using a t-distribution calculator, for a two-tailed 95% confidence interval, with 21 - 1 = 20 df, is t = 2.086.

The other parameters are given as follows:

$\overline{x} = 23, s = 8, n = 21$

The margin of error is given by:

$M = t\frac{s}{\sqrt{n}} = 2.086\frac{8}{\sqrt{21}} = 3.64$

Hence the bounds of the interval are:

$\overline{x} - M = 23 - 3.64 = 19.36$

$\overline{x} + M = 23 + 3.64 = 26.64$

The 99% confidence interval for the population mean is (19.36, 26.64).

More can be learned about the t-distribution at brainly.com/question/16162795

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1 year ago

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Musya8 [376]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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