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3 years ago

8

A souvenier maker wants to create a scale model of threiffel tower. The effiel tower is 324 meters tall and has a base with dime

nsions 125 meters by 125 meters. The model will rest on a base with dimensions 5cm by 5cm. How tall will themodel be in cenimeters?

1 answer:

Allisa [31]3 years ago

7 0

125/12.5 = 10

10cm:1m

<span>324/10 = 32.4cm</span>

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Let X the random variable that represent the delivery times of a population, and for this case we know the distribution for X is given by:

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Step-by-step explanation:

Assuming this question: The delivery times for all food orders at a fast-food restaurant during the lunch hour are normally distributed with a mean of 14.7 minutes and a standard deviation of 3.7 minutes. Let R be the mean delivery time for a random sample of 40 orders at this restaurant. Calculate the mean and standard deviation of $\bar X$ Round your answers to two decimal places.

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Solution to the problem

Let X the random variable that represent the delivery times of a population, and for this case we know the distribution for X is given by:

$X \sim N(14.7,3.7)$

Where $\mu=14.7$ and $\sigma=3.7$

Since the distribution of X is normal then we know that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

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$\mu_{\bar X}= 14.70$

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For this case we must follow the steps below:

step 1:

We place each of the given points on a coordinate axis

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We join the AC points (represented by the orange line)

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It is observed that the resulting figure after placing the 4 points on a coordinate axis, turns out to be a rhombus.

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tigry1 [53]

Area abc def cuase its 126-72+28=82 so abc def

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