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Sagot :
Using it's formula, it is found that Val's margin of error is of 9.8 pounds.
Margin of error:
The margin of error is given by the following equation:
[tex]M = 1.96\frac{s}{\sqrt{n}}[/tex]
In which:
- s is the standard deviation.
- n is the sample size.
In this problem:
- The standard deviation is of 50, hence [tex]s = 50[/tex].
- Val weighed 100 cows, hence [tex]n = 100[/tex].
Then:
[tex]M = 1.96\frac{s}{\sqrt{n}}[/tex]
[tex]M = 1.96\frac{50}{\sqrt{100}}[/tex]
[tex]M = 9.8[/tex]
Val's margin of error is of 9.8 pounds.
You can learn more about margin of error at https://brainly.com/question/14510808
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