1. By Samantha Turi

2. Dog Types Height in Inches Deviation Squared
Labrador Retriever 24 7.357 54.127
Chihuahua 9 7.642 58.413
German Shephard 25 8.357 69.841
Golden Retriever 24 7.357 54.127
Shih Tzu 11 5.642 31.841
Dachshund 8 8.642 74.698
Pug 14 2.642 6.984
American Pit Bull 20 3.357 11.270
Terrier
Yorkshire Terrier 9 7.642 58.413
Beagle 16 0.642 0.413
Boxer 25 8.357 69.841
Jack Russell 15 1.642 2.698
Pomeranian 12 4.642 21.556
Border Collie 21 4.357 18.984

3. ◦ Find the average of the
heights.
24+9+25+24+11+8+14+
20+9+16+25+15+12+21
=233/14

4.  24 - 16.642 = 7.357
9 - 16.642 = 7.642
 25 - 16.642 = 8.357
 24 - 16.642 = 7.357
 11 – 16.642 = 5.642…etc

5.  7.357 x 7.357 = 54.127
 7.642 x 7.642 = 58.413
 8.357 x 8.357 = 69.841
 7.357 x 7.357 = 54.127
 5.642 x 5.642 = 31.841…
etc

6.  54.127 + 58.413 + 69.841
+ 54.127 + 31.841 +
74.698 + 6.984 + 11.270
+ 58.413 + 0.413 +
69.841 + 2.698 + 21.556
+ 18.984 = 533.2143

7.  533.2143 / 14 = 38.086
Then you find the square root of
that number to find the
Standard Deviation
√38.086 = 6.171