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mixer [17]
3 years ago
12

The Assessment Test asked, "Do I feel disappointed when my achievements go unnoticed?" Do I Agree or Disagree?

Advanced Placement (AP)
1 answer:
Romashka [77]3 years ago
6 0
I would disagree.
It is not always important to be noticed, because you don't have to depend on other people's approval. If you are satisfied with your accomplishments, why does it matter if someone else is going to praise you for them or not? You should be happy, regardless of other people's opinions and thoughts.
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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
  It's important to recognize children when they follow the rules because not doing so can​
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not recognizing children when they do good and follow rules makes them fell as if they are unrecognised and may lead to them not following rules and doing right

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Adam paid $76. 25 for renting a bicycle for five hours. What was the rate per hour for renting a bicycle?
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76.25 divided by 5 equals 15.05. The rate per hour for renting a bike is 15.05.
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Which statement regarding the impact of globalization
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Answer:

a

Explanation:

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Which of the following refer to just noticeable difference between two stimuli
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Hi there ..

Can you please type the whole questions ..

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