Thickness measurements of ancient prehistoric Native American potshards discover

Question

Thickness measurements of ancient prehistoric Native American potshards discovered in a Hopi village are approximately normallydistributed, with a mean of 5.5millimeters (mm) and a standard deviation of 1.2 mm. For a randomly found shard, find thefollowing probabilities. (Use 4 decimal places.) (a) the thickness is less than 3.0 mm
1

(b) the thickness is more than 7.0 mm
2

(c) the thickness is between 3.0 mm and 7.0 mm
3 (a) the thickness is less than 3.0 mm
1

(b) the thickness is more than 7.0 mm
2

(c) the thickness is between 3.0 mm and 7.0 mm
3

Explanation / Answer

2.) 0.10565 3.) 0.08704

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