3 years ago

I doing one of my math quiz’s rn can you help

Mathematics

1 answer:

snow_lady [41]3 years ago

5 0

Answer:

a-b

Step-by-step explanation:

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The selling price for houses in a neighborhood in West Richland, WA have an approximately normal distribution with a mean sellin

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The probability that the average selling price of the 35 homes will be within $2000 of the true mean is 0.5753

First, we need to find the z-score and this is expressed according to the formula;

$z=\dfrac{x-\mu}{\sigma}$

x is the sample space

$\mu$ is the mean value

$\sigma$ is the standard deviation

Given the following parameters

Mean = $275,000

Standard deviation = $10,500

If the true mean is $273,000, then;

$z=\dfrac{273,000-275000}{10,500} \\z = \frac{-2000}{10500}\\z= -0.1905$

If the true mean is $277,000

$z=\dfrac{277,000-275000}{10,500} \\z = \frac{2000}{10500}\\z= 0.1905$

This means that the z-score is between -0.1095 and 0.1095

Pr( -0.1095 ≤ z ≤ 0.1095)

According to the z table, the probability that the average selling price of the 35 homes will be within $2000 of the true mean is 0.5753

Learn more here: brainly.com/question/17436641

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2 years ago

I'm not sure how to do this, help?

Andrei [34K]

X*26=180 subtract 26 from 180 then you will find x.

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3 years ago