Mathematics, 18.01.2020 05:31 sdfhghjg
Poly(3-hydroxybutyrate) (phb), a semicrystalline polymer that is fully biodegradable and biocompatible, is obtained from renewable resources. from a sustainability perspective, phb offers many attractive properties though it is more expensive to produce than standard plastics.
the accompanying data on melting point (degree c) for each of 12 specimens of the polymer using a differential scanning calorimeter appeared in an article.
180.4 181.7 180.8 181.7 182.7 181.5 181.4 182.2 182.1 180.2 181.6 180.5
compute the following. (round your answers to two decimal places.)
(a) the sample range degree c
(b) the sample variance s^2 from the definition s^2 =
(c) the sample standard deviation s =
(d) s^2 using the shortcut method s^2 =
Answers: 2
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Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.
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Poly(3-hydroxybutyrate) (phb), a semicrystalline polymer that is fully biodegradable and biocompatib...
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