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Sedaia [141]
2 years ago
11

All the different habitats in our world make up

Advanced Placement (AP)
2 answers:
dem82 [27]2 years ago
7 0

Answer:

our planet

Explanation:

Forests. Forests are large areas covered with plants.

Grasslands. Grasslands are regions dominated by grasses.

Deserts. Deserts are areas that receive very little rainfall.

Mountains and Polar Regions. Earth’s polar regions (the Arctic in the north and the Antarctic in the south) and tall mountains are extremely cold.

Aquatic Habitats are seas, oceans, rivers, etc.

Elenna [48]2 years ago
6 0

Answer:

Biodiversity

Explanation:

Assuming the choices are:

biodiversity

ecosystem diversity

genetic diversity

species diversity

The correct answer is biodiversity. You can find out more on this from the link below:

brainly.com/question/8625987

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true, blues music is

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3 years ago
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AP STATISTIC
Svet_ta [14]

The mean for the total cost of the two items is 82. The standard deviation of the total cost of the two items is 14.14214. The probability of finding two random items at this auction with a total price of less than $80 is 0.44377.

<h3>What is a random variable?</h3>

A random variable is a variable with an undetermined value that gives values to each of the results of a statistical experiment.

From the parameters given:

  • Let us assume that X represents the random variable that connotes the price of the item during the large auction.

Given that:

  • X is normally distributed with a mean of $41 and
  • A standard deviation of $10

X \sim N(μ, σ²)

X \sim N(41, 10²)

Suppose we made an assumption that Y should denote the total cost of items:

i.e.

Y = X₁ + X₂

Here;

\mathbf{X_i \sim N(41, 10^2)} \\ \\ \mathbf{E(Y) = E(X_1+X_2) } \\ \\ \mathbf{E(Y) = 41 + 41 } \\ \\  \mathbf{E(Y) = 82}

The variance of (Y) is:

\mathbf{Var (Y) = Var(X_1+X_2) = Var (X_1) + Var(X_2) } \\ \\\mathbf{= 10^2+ 10^2} \\ \\ \mathbf{=200}

\mathbf{Standard \ deviation \ SD (Y) = \sqrt{200} }

= 14.14214

The probability of finding the two random items at the auction with a total price of less than $80 can be computed as:

P(Y < 80)  

Since the data is normally distributed,

\mathbf{=P\Big(Z < \dfrac{x -\mu}{\sigma}\Big)}

\mathbf{=P\Big(Z < \dfrac{80 -82}{14.14214}\Big)}

\mathbf{=P\Big(Z < -0.1414213\Big)}

Recall that:

P(Z < -z) = P(Z > z)

Hence;

= P (Z  > 0.1414213)

= 1 - P(Z ≤  0.1414213)

From the Z tables, the value of Z at 0.1414213 is 0.55623;

=  1 -  0.55623

= 0.44377

Therefore, we can conclude that the probability of finding two random items at this auction with a total price of less than $80 is 0.44377.

Learn more about random variables in probability here:

brainly.com/question/15246027

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2 years ago
Which of the following groups of cities contains the best examples of central places with large hinterlands?
uranmaximum [27]

Answer: Atlanta, Denver, and Calgary

Explanation: I took the test and got it correct ❤️

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Answer:

the area of cone is

301 cubic inches.......

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the price f a good x rises, causing the demand for good y to fall. the two goods are therefore substitutes. explain whether true
Vesna [10]
Yes the two goods are therefore substitutes <span>if the price f a good X rises, causing the demand for good Y to fall for example two substitutes tea and coffee and the price of tea will be increase when the demand of coffee will decrease because now more people will demand tea and when demand increases price increases.

Hope it helps.
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