The bells at kings school ring every 6 mins At queens every 5 mins At princess every 9 mins 3 bells ring together at 8:30 When i
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Using it's formula, it is found that Val's margin of error is of 9.8 pounds.
<h3>Margin of error:</h3>The margin of error is given by the following equation:
In which:
- s is the standard deviation.
- n is the sample size.
In this problem:
- The standard deviation is of 50, hence
.
- Val weighed 100 cows, hence
.
Then:
Val's margin of error is of 9.8 pounds.
You can learn more about margin of error at brainly.com/question/14510808
The 20th percentile of your distribution is x = 11.48 inches, the 2nd selection.
