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Studentka2010 [4]
3 years ago
6

A snowstorm lasted for three days Dearing the storm 7 inches of snow fell on the first day 5 inches of snow fell on the second d

ay 8 inches of snow fell on the third day altogether how many feet of snow during the three days so storm please answer in fraction form
Mathematics
1 answer:
yanalaym [24]3 years ago
8 0

Answer:

20 inches or 20/1

Step-by-step explanation:

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Answer:

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\sigma=\sqrt{E(X^{2})-(E(X))^{2}}\\=\sqrt{6.58-(2.22)^{2}}\\=\sqrt{1.6516}\\=1.285\\\approx1.3

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