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inn [45]
4 years ago
15

Descriptive statistics ___________, while inferential statistics ______________. are measures of central tendency; are measures

of variance summarize data; assess if data can be generalized describe data from experiments; describe data from surveys and case studies determine if data can be generalized to other populations; summarize data indicate the significance of the data; summarize the data
Mathematics
1 answer:
Leviafan [203]4 years ago
8 0

Answer:

Descriptive statistics <u>describe data from surveys and case studies,</u> while inferential statistics <u>determine if data can be generalized to other populations</u>.

Step-by-step explanation:

Let's look at the definition of each type of Statistics

Descriptive Statistics, as the name says, describes, properties or characteristics (that can be gathered through surveys and case studies), using mathematical methods for tendency and dispersion.

Inferential statistics, as the name states, infers, if samples from a larger data set have behaviors that can be then extrapolated to the larger group.

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Random samples of size 81 are taken from an infinite population whose mean and standard deviation are 200 and 18, respectively.
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Answer:

d. 200 and 2

Step-by-step explanation:

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.

In this problem, we have that:

Mean = 200

Standard deviation = 18

Sample size: 81

Standard error: s = \frac{18}{\sqrt{81}} = 2

So the correct answer is:

d. 200 and 2

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Step-by-step explanation:

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tom wants to buy a sweater for $30. the sales tax in his city is 4%. how much tax is tom paying? What is the total cost for the
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$31.20

Step-by-step explanation:

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Name the property of multiplication illustrated<br><br> 3 X (4 + 7) = 3 X 4 + 3 X 7
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Jenna uses 18 inches of ribbion for each box she wraps how many yards of rib ion does she need to wrap 4 boxes
Sav [38]
Hello Myeisha91! 

First we need to find how many inches in total to wrap 4 boxes. We do that by multiplying 18 x 4 = 72 so Jena needs 72 inches. The question wants to know how many yards so we need to convert 72 inches into yards. We can convert inches to yards by using a conversion factor. We know that 1 inch = 0.0277778 yd. Now that we know  1 inch = 0.0277778 yd, lets convert the 72 inches to yards.

We convert 72 in to yards by multiplying 72 in by \frac{0.0277778\;yd}{1\; in}
72\;in\times\frac{0.0277778\; yd}{1\;in} = 2\; yd
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