The amount of leaf protein (mg/g fresh weight) in soybean plants of a particular variety was...
The amount of leaf protein (mg/g fresh weight) in soybean plants of a particular variety was determined for a sample of six plants, yielding the following data: 12.9, 15.5, 13.2, 7.5, 6.1, 8.9 Compute: The standard deviation
Homework Answers
Answer:
The given data is 12.9, 15.5, 13.2, 7.5, 6.1, 8.9
| x | (x-x̅ ) | (x - x̅)² | |
| 12.9 | 2.21667 | 4.913626 | |
| 15.5 | 4.81667 | 23.20031 | |
| 13.2 | 2.51667 | 6.333628 | |
| 7.5 | -3.18333 | 10.13359 | |
| 6.1 | -4.58333 | 21.00691 | |
| 8.9 | -1.78333 | 3.180266 | |
| Total = | 64.1 | 68.76833 |
|
Mean = ∑x/n =64.1/6 =10.68333 |
| Sample standard deviation = √(∑(x - x̅)²/n-1) =√(68.76833/6-1) =3.708593534 =3.7086 |
Sample Standard Deviation = 3.7086
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