I would say A simply because the definition of inferential statistics means to make a conclusion with evidence
Answer:
- determinant: -15
- x = 3; y = 4; z = 1
Step-by-step explanation:
The matrix of coefficients has one row corresponding to each equation. The constants in that row are the coefficients of the variables in the equation. Coefficients are listed in the same order on each row. A missing term is represented by a coefficient of 0.
<h3>coefficient matrix, determinant</h3>
The first attachment shows the coefficient matrix and its determinant.
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<h3>solution</h3>
The solution to the system of equations can be found by left-multiplying the constant vector by the inverse of the coefficient matrix.
This multiplication is shown in the second attachment. It tells us ...
![\textbf{X}=\left[\begin{array}{c}x\\y\\z\end{array}\right]=\left[\begin{array}{c}3\\4\\1\end{array}\right]](https://tex.z-dn.net/?f=%5Ctextbf%7BX%7D%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bc%7Dx%5C%5Cy%5C%5Cz%5Cend%7Barray%7D%5Cright%5D%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bc%7D3%5C%5C4%5C%5C1%5Cend%7Barray%7D%5Cright%5D)
It’s 3.4 because 3.4 times itself equals 11.56 which is the closest to 11.
Answer:
6.85% decrease
Step-by-step explanation:
Initial Price = $3.65
Final Price = $3.40
Difference in price = Final - Initial = $3.40 - $3.65 = - $0.25
The negative sign indicates that the price decreased hence we can say that the decrease is positive $0.25.
% decrease
= (Amount decreased / initial price) x 100%
= (0.25 / 3.65) x 100%
= 6.85% decrease
A successful basketball player has a height of 6 feet 66 inches, or 198 cm. based on statistics from a data set, his height converts to the z score of 3.38. how many standard deviations is his height above the mean
Answer: z-score tells us how many standard deviations either above or below the mean a particular data value is.
There the z-score of the height of basketball player is 3.38. It means his height is 3.38 standard deviation's above the mean.
