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Nadusha1986 [10]
3 years ago
13

$819.73 insurance as a percentage of $1192.64

Mathematics
1 answer:
nordsb [41]3 years ago
6 0
$819.73/$1192.64 × 100% ≈ 68.73%
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A sample with a mean of m = 40 and a variance of s2 = 20 has an estimated standard error of 1 point. how many scores are in the
tamaranim1 [39]

The correct option is 20.

The score found for the sample is 20.

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

A standard error is a statistic that is applied to test the distribution of data. This metric is comparable to standard deviation. We can calculate the standard error if we know the sample size & standard deviation. It assesses the mean's precision.

Now, according to the question;

Sample mean; \bar{x}=40

Sample variance; s^{2}=20

Thus, s=\sqrt{20}=4.47

Standard error SE = 1

The amount of scores with in sample must be determined here.

The standard error formula is as follows:

S E=\frac{s}{\sqrt{n}}

We might rearrange the formula as follows:

\begin{aligned}\sqrt{n} &=\frac{s}{S E} \\n &=\left(\frac{s}{S E}\right)^{2}\end{aligned}

Substituting the values;

\begin{aligned}&n=\left(\frac{4.47}{1}\right)^{2} \\&n=19.98\end{aligned}

The sample's number of scores n = 19.98 = 20 (round up)

Therefore, the scores are in the sample is 20.

To know more about the Standard error, here

brainly.com/question/14467769

#SPJ4

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1 year ago
If the first term is 3 (A1=3) and the common difference is 4 (d=4) what is the fifth term? (A5=?)​
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Answer:

Pov:شما به ترجمه گوگل رفت برای دیدن آنچه من گفتم و دیدم این xD

Step-by-step explanation:

Pov:شما به ترجمه گوگل رفت برای دیدن آنچه من گفتم و دیدم این xD

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Addition and Subtraction is Inverse Operations
Multiplication and Division is Inverse Operations
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Your classroom received 150 books. You are placing them in bins. Each bin holds 20 books. How many bins do you need? Remainder:
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you need 8 bins because 150/20 is 7.5 but you can't have half a bin and you need somewhere to put the other books

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TIMED PLEASE HELP ASAP! MULTIPLE CHOICE, BRAINLIEST FOR CORRECT ANSWER!
erma4kov [3.2K]
I think it is the third one
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