Ask question

Ask question

All categories

3 years ago

12

classmate DAN sual For madenaldy asymmetrical distribution, the arithmetic mean 28 and the median = 25. Find modo of this dish b

utton Sekulin

1 answer:

vazorg [7]3 years ago

3 0

Median=M_d=25
Mean=M=28
Mode=M_o=?

We know

$\boxed{\sf M_o=3M_d-2M}$

$\\ \sf\longmapsto M_o=3(25)-2(28)$

$\\ \sf\longmapsto M_o=75-56$

$\\ \sf\longmapsto M_o=19$

You might be interested in

Estimate the side length of a square that has a 9 cm long diagonal

Diano4ka-milaya [45]

9^2 = 2x^2
81 = 2x^2
40.5 = x^2
6.36 = x
I think the side length of the square would be around 6.36 cm.
**i don’t know if this is right

6 0

3 years ago

The point P(-4, -5) is rotated 180° counterclockwise around the origin. What are the coordinates of the resulting point, P′?

TEA [102]

The points are (4,5 ) because the rule for coordinates when rotated 180 is (-x,-y)

6 0

3 years ago

Evaluate the given integral by making an appropriate change of variables, where R is the region in the first quadrant bounded by

Whitepunk [10]

$\displaystyle\iint_R\sin(384x^2+486y^2)\,\mathrm dA$

Notice that Given that $R$ is an ellipse, consider a conversion to polar coordinates:

$\begin{cases}x(r,\theta)=\frac r8\cos\theta\\y(r,\theta)=\frac r9\sin\theta\end{cases}$

The Jacobian for this transformation is

$J=\begin{bmatrix}\frac18\cos\theta&-\frac r8\sin\theta\\\frac19\sin\theta&\frac r9\cos t\end{bmatrix}$

with determinant $\det J=\frac r{72}$

Then the integral in polar coordinates is

$\displaystyle\frac1{72}\int_0^{\pi/2}\int_0^1\sin(6r^2\cos^2t+6r^2\sin^2t)r\,\mathrm dr\,\mathrm d\theta=\int_0^{\pi/2}\int_0^1r\sin(6r^2)\,\mathrm dr\,\mathrm d\theta=\boxed{\frac{\pi\sin^23}{864}}$

where you can evaluate the remaining integral by substituting $s=6r^2$ and $\mathrm ds=12r\,\mathrm dr$ .

5 0

3 years ago

100 POINTS!!!!!! MAY SOMEONE PLEASE HELP ME!!!! I NEED IT BAD!<br> THANK YOU IN ADVANCE!

monitta

Answer:3 7/8

Step-by-step explanation:A. I think you just want the answer not the explanation. :)

7 0

4 years ago

What is the value of the expression (7 - 2)2 ?

Irina18 [472]

(7-2)2=5*2=10
or
(7-2)2=7*2-2*2=14-4=10

5 0

3 years ago