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2 years ago

For the following set of data, find the population standard deviation, to the nearest

Mathematics

1 answer:

mr Goodwill [35]2 years ago

6 0

Answer:

The population standard deviation is 28.70

Explanation:

The standard deviation formula is attached below!

Hope this helped. And happy new year!

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The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift.

garik1379 [7]

Answer:

The probability that X is less than 32 minutes is 0.736.

Step-by-step explanation:

Given : The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift. If X has an average value of 24 minutes.

To find : What is the probability that X is less than 32 minutes?

Solution :

If X has an average value of 24 minutes.

i.e. $\lambda=24$

The random variable X is exponentially distributed, where X represents the time it takes for a person to choose a birthday gift.

The exponentially function is $\frac{1}{\lambda}e^{-\frac{x}{\lambda}}$

The function form according to question is

$f(x)=\{\frac{1}{24}e^{-\frac{x}{24}}, x>0\}$

The probability that X is less than 32 minutes is

$P[x$

Therefore, the probability that X is less than 32 minutes is 0.736.

7 0

2 years ago

When the factors of a trinomial are (x + p) and (x + q) then the constant term

nirvana33 [79]

The answer is B
Explanation: when there is Two parentheses you multiply

8 0

3 years ago

According to Home Water Works, the average American shower uses 17.2 gallons and lasts about 8.2 minutes. To the nearest tenth o

bearhunter [10]

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Home Water Works says that in most homes, showers are the third-largest user of water after toilets and clothes washers. The average American shower water usage is 17.2 gallons with the average shower length being 8.2 minutes. The average flow rate is 2.1 gallons per minute.

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3 0

2 years ago

Read 2 more answers

Could someone help me on this math question !

Alenkasestr [34]

The answer is 1/3 chances, There are 12 tables in total, 4 red and 8 blue. You can Render that down to 1 red and 2 blue, now there are 3 tables and only 1 is red, therefore the answer is 1/3 chance

6 0

2 years ago

Ill give brainiest<br><br> if it was 11:30 am and its now 11:47 am, how many hours was that

Kaylis [27]

Answer:

0 hours and 17 minutes

Step-by-step explanation:

47 - 30 = 17

6 0

2 years ago