Ynot G

The mean height of men is 75 inches and the standard deviation is 1.5 inches. The mean height of women is 69.2 inches. The variation in heights is greater among women than among men. Then the variance of women's heights must be more than:

A. 1.264

B. 1.384

C. 1.598

D. 1.915

The mean height of men is 75 inches and the standard deviation is 1.5 inches. The mean height of women is 69.2 inches. The variation in heights is greater among women than among men. Then the variance of women's heights must be more than:

A. 1.264

B. 1.384

C. 1.598

D. 1.915

Basically, you wake up really early, and have a cup nearby. Your alarm goes off, you wake up, chug a few gulps, then go back to sleep. Fifteen to thirty minutes later, the caffine kicks in, and you get up, completely lucid and refreshed.

3 at test.convolution (line 90)

at test.main(line 16)

Compiled, but when I try to run, I get ^

public class test

{

public static void main(String[] args)

{

double[][] smooth = new double[3][3];

for(int i = 0; i < 3; i++)

{

for(int j = 0; j < 3; j++)

{

smooth[i][j] = 1.0 / 9.0;

}

}

int[][] greyHouse = imgSupport.load("House.jpg");

int[][] smoothHouse = convolution(greyHouse, smooth);

imgSupport.display(smoothHouse, "Edge detection");

imgSupport.save(smoothHouse, "mean_house.png");

}

public static double[][] multiply(int[][] a, double[][] b)

{

double[][] product;

product = new double[a.length][a[0].length];

if(a.length != b.length || a[0].length != b[0].length)

{

return null;

}

for(int i = 0; i < a.length; i++)

{

for(int j = 0; j < a[0].length; j++)

{

product[i][j] = a[i][j] * b[i][j];

}

}

return product;

}

public static int[][] snip(int[][] a, int i, int j, int dx, int dy)

{

int[][] output;

output = new int[dx][dy];

if(i + (dx/2) > a.length || i - (dx/2) < 0)

{

return null;

}

if(j + (dy/2) > a[0].length || j - (dy/2) < 0)

{

return null;

}

for(int x = 0; x < dx; x++)

{

for(int y = 0; y < dy; y++)

{

output[x][y] = a[i - (dx / 2) + x][j - (dy / 2) + y];

}

}

return output;

}

public static double absSum(double[][] a)

{

double sum = 0;

for(int i = 0; i < a.length; i++)

{

for(int j = 0; j < a[0].length; j++)

{

sum = sum + a[i][j];

}

}

sum = Math.abs(sum);

if(sum > 255)

{

sum = 255;

}

return sum;

}

public static int[][] convolution(int[][] a, double[][] kernel)

{

int dx = kernel.length;

int dy = kernel[0].length;

int[][] output = new int[dx][dy];

double[][] midd = new double[dx][dy];

for(int i = dx/2; i < (a.length - dx/2); i++)

{

for(int j = dy/2; j < (a[0].length - dy/2); j++)

{

midd = multiply(snip(a, i, j, dx, dy), kernel);

output[i][j] = (int) absSum(midd);

if(output[i][j] > 255)

{

output[i][j] = 255;

}

}

}

return output;

}

}

Keeping getting a wrong answer:

Given two lines L1 (1, 2, -1) + t[1, 1, 0], L2(5, 1, -2) + s[2, 1, 1] find the shortest distance between then & the points that give the shortest distance.

To find the distance, I did:

I'm getting different answers for the shortest distance.

First I did:

Cross product = [1, 1, -1]

Project the vector between the two given points given onto the cross product, then take the magnitude of the resulting vector, to get (4/3)(3^.5) as the distance

Too solve for the two points with the two lines, I did v=L2 - L1 = [4 + 2s - t, s - t - 1, s - 1], set dot product of v and the vector of each line to zero. I get two equations:

3 + 3s - 2t = 0

6 + 6s - 3t = 0

Which I then solved to get t = 0 and s = -1

I get two points, (1, 2, -1) and (3, 0, -3) but the distance between these points is root 12, which is different that the one I got with the projection. Am I doing someting wrong?

I'm supposed to find the type and value of this variable:

_x = 2 + 3 + """ + 2+ 3

What do the apostrophes/quotes in the middle mean?

Permanently, water doesn't work as it's still sticky when it dried.

Thanks in advance.

Hi everyone, I need a way to unsticky packing tape permanently. Hopely something safe and legal. Soaking in water doesn't work as it'll be sticky again once it is dry. Thanks in advance.

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Feel free to suggest other Structure Decks and their advantages.

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http://i597.photobucket.com/albums/tt53/thefunkyph...

please be at least a little specific. No mohawks, mullets and the like.

http://i597.photobucket.com/albums/tt53/thefunkyph...

Please be at least a little specific. No mohawks, mullets and the like please. Thanks

http://i597.photobucket.com/albums/tt53/thefunkyph...

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thanks

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