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iragen [17]
3 years ago
5

A dvd is marked down 15% the regular price is $12 what is the sale price?

Mathematics
2 answers:
Makovka662 [10]3 years ago
7 0
The answer to this question is 1.79 but if you round up it should be 1.80
mash [69]3 years ago
4 0

15% off means the dvd is selling for 85% of the original price ( 100% - 15%=85%)

Multiply the original price by 85%

12 x 0.85 = 10.20

The price is $10.20

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<h3>Answer:    270.58 dollars</h3>

======================================================

Work Shown:

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So,

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4 0
2 years ago
In a simple regression analysis for a given data set, if the null hypothesis β = 0 is rejected, then the null hypothesis ρ = 0 i
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Answer:

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And the statistic to check the significance of a coeffcient in a regression is given by:

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For this case is importantto remember that t1 and p value for test of slope coefficient is the same test statistic and p value for the correlation test so then the answer would be:

Always

Step-by-step explanation:

In order to test the hypothesis if the correlation coefficient it's significant we have the following hypothesis:

Null hypothesis: \rho =0

Alternative hypothesis: \rho \neq 0

The statistic to check the hypothesis is given by:

t=\frac{r \sqrt{n-2}}{\sqrt{1-r^2}}

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Always

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