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sdas [7]
3 years ago
6

The mean housing price for an area is $135,000 with a standard of $45,000 but is not normally distributed. According to the Cent

ral Limit Theorem what would we need to make sure is true about our sample in order to use normal distribution
Mathematics
1 answer:
kramer3 years ago
7 0

Answer:

A sample size greater than 30

Step-by-step explanation: The central limit theorem proffers the conditions necessary to obtain a normal or bell shaped distribution. It defines normal distribution in terms of mean, standard deviation and sample size. The sample size is a very important factor in determining the shape of a distribution.

Thus with a population having mean and standard deviation stated, in other to make use of or assume normal distribution, the sample size must be large. According tho the central limit theorem, a size of greater than 30 is deemed to be large enough. As the Same size increases, the sample mean converges to the value of the population mean.

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What is the measure of ∠C?
tester [92]
The answer to this is 99.

You take all known values and subtract it from 360. 

360-132-39-90=99.
7 0
3 years ago
Assume standard deviation of all invoices is $200. Sample 100 invoices. What is the standard deviation of xbar
posledela

Answer:

<h3>20</h3>

Step-by-step explanation:

Standard deviation of the mean is expressed as:

SM = s/√n

s is the standard deviation of all invoices

n is the sample size of the invoiced

Given

s = $200

n = 100

Required

Standard deviation of the mean

Substitute the given parameters into the given equation

SM = 200/√100

SM = 200/10

SM = 20

Hence the standard deviation of xbar is 20

3 0
3 years ago
The average person that weighs 150 pounds has approximately 4.5 liters of blood in their body. Based on that same scale, suppose
Nikitich [7]

Answer:

First you find how many pounds for 1 litre of blood. Trick is if you divide x by y, the answer you get will follow the unit of x. So if you divide 150 pounds by 4.5 litres, the answer will be 33.33 pounds per litre. So how many 33.33... is there in 250? Just divide 250 by 33.333 or (150/4.5), you'd get 7.5. That means for there's 7.5 parts of 33.333 pounds in 250 pounds. And if 33.333 pounds is equal to 1 litre of blood, you get 7.5 liter!

5 0
2 years ago
I will mark brainliest!
Gelneren [198K]

Answer:

A

Step-by-step explanation:

It looks like M is composed of all real numbers and that U = R also means its composed of all real numbers. This means that M and U are equal and both are composed of all real numbers.

To define the complement of M, it includes all values which are not in M. However, since M already has all real numbers and U doesn't have any values that M doesn't then the complement is nothing. It is an empty set with no items in it. This means A is the correct answer.

5 0
3 years ago
Evaluate 2-(-4)+(-y) where y = 7
Levart [38]
2+4=6
6+-7=-1
Your answer would be negative 1 or -1
7 0
3 years ago
Read 2 more answers
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