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Oksana_A [137]
3 years ago
15

How you get sample variance

Mathematics
1 answer:
svp [43]3 years ago
6 0
To calculate the variance follow these steps: Work out the Mean (the simple average of the numbers) Then for each number: subtract the Mean and square the result (the squared difference). Then work out the average of those squared differences.
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First you need to find how much 20% of $18.50 is. To do this, you need to multiply 18.50 by 20% which in decimal form is 0.2
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