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Dovator [93]
1 year ago
10

When practicing problems in the Study​ Plan or working on a Homework​ assignment, the issues are broken up into​ steps, which ar

e displayed one at a time.
Some steps do not require you to enter an answer. After you have read the information in one of these​ steps, click the Continue button to advance to the next step.
Part 2
Part 3
When an active step requires you to enter an answer or answers before advancing to the next​ step, you can check whether the​ answer(s) in the currently active part is correct by clicking the Check Answer button.
In​ general, for a step with an answer​ box, the player allows three incorrect tries before marking the answer box wrong and displaying the correct answer. Note that on a Homework assignment the Check Answer button changes to say Final Check on your last try.
Type the number 1 in the following answer box.

StartFraction nothing Over nothing EndFraction StartFraction nothing Over nothing EndFraction
Mathematics
1 answer:
Ipatiy [6.2K]1 year ago
5 0

Answer:

hey bro

Step-by-step explanation:

hwy bro

my name is inkolnown

this is yout answer

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B2 + 4 when b= 3 Need help pls
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10???

Step-by-step explanation:

3(2)+4

6+4

10

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O<br> Find the values of x and y.<br> 480<br> (5x – 17)<br> 6<br> 2<br> and y<br> (<br> o
ANTONII [103]

Answer:4

Step-by-step explanation: trust me it’s correct

6 0
3 years ago
One-third of a number decreased by six equals eight. What is the number?<br> 6
Mademuasel [1]

Answer:

42

Step-by-step explanation:

1/3 x 42 = 14

14 - 6 = 8

6 0
3 years ago
Read 2 more answers
Find c for me please
UNO [17]

Answer:

180

Step-by-step explanation:

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6 0
3 years ago
a) A large hotel in Miami has 900 rooms (all rooms are equivalent). During Christmas, the hotel is usually fully booked. However
Olegator [25]

Answer:

14.69% probability that this happens

Step-by-step explanation:

To solve this question, we need to understand the normal probability distribution and the central limit theorem.

Normal probability distribution

When the distribution is normal, we use the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

Central Limit Theorem

The Central Limit Theorem estabilishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

For a proportion p in a sample of size n, the sampling distribution of the sample proportion will be approximately normal with mean \mu = p and standard deviation s = \sqrt{\frac{p(1-p)}{n}}

1000 people were given assurance of a room.

This means that n = 1000

Let us assume that each customer cancels their reservation with a probability of 0.1.

So 0.9 probability that they still keep their booking, which means that p = 0.9

Probability more than 900 still keeps their booking:

n = 1000, p = 0.9

So

\mu = 0.9, s = \sqrt{\frac{0.9*0.1}{1000}} = 0.0095

901/1000 = 0.91

So this is 1 subtracted by the pvalue of Z when X = 0.91.

Z = \frac{X - \mu}{\sigma}

By the Central Limit Theorem

Z = \frac{0.91 - 0.9}{0.0095}

Z = 1.05

Z = 1.05 has a pvalue of 0.8531

1 - 0.8531 = 0.1469

14.69% probability that this happens

3 0
3 years ago
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