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elixir [45]
3 years ago
15

Rachel bought 1500 shares of cash

Mathematics
2 answers:
Elina [12.6K]3 years ago
8 0

I think this was ur question Rachel bought 1,500 shares of Cawh Consolidated Bank at a price of $24.85 each. As the price climbed, she sold off parts of her holdings. She sold off 250 shares at $28.32 apiece, she sold 800 of her shares at $33.60 apiece, and she sold off the remainder of her shares at $39.94 apiece. If Rachel's broker charges a commission of $65 per $1,000 of stock bought or sold, how much profit did Rachel make, to the nearest dollar?

I think the answer is 8,859? I don't know what the question was, but I think that's it. Hope this helps. c;

spayn [35]3 years ago
6 0

the anwser to this is 8,859

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The value 155 is zero standard deviations from the mean, because x = μ , and therefore z = 0.

<h3>What is Standard Deviation?</h3>

The standard deviation is a measure of the amount of variation or dispersion of a set of values.

The key concept we need to manage here is the z-scores , and we can obtain a z-score using the next formula:

z = (x - μ)/σ      ..............[1]

Where

z is the z-score.

x is the raw score: an observation from the normally distributed data that we want standardize using [1].

μ is the population mean.

σ is the population standard deviation.

These standardized values have always the same probability in the standard normal distribution, and this is the advantage of using it for calculating probabilities for normally distributed data.

A subject earns a score of 155.

From the question, we know that:

x = 155.

μ = 155

σ = 50

Having into account all the previous information, we can say that the raw score, x = 155, is zero standard deviations units from the mean. The subject earned a score that equals the population mean. Then, using [1]:

z = (x - μ)/σ

z = (155 - 155) / 50

z = 0/50

z = 0

As we say before, the z-score "tells us" the distance from the population mean, and in this case this value equals zero:  

x = μ

Therefore, z = 0

So, the value 155 is zero standard deviations from the [population] mean.

Learn more about Standard Deviation from:

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2 years ago
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It is given that :

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7 0
3 years ago
Give right triangle PQR, which representa the value of sin (P)?
Komok [63]

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4 0
3 years ago
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A population of size 320 has a proportion equal to .60 for the characteristic of interest. What are the mean and the standard de
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Answer:

The answer is c.) 0.6 and 0.14

Step-by-step explanation:

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The answer is c.) 0.6 and 0.14

6 0
3 years ago
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