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VikaD [51]
3 years ago
11

The price of one gallon of milk has increased from $3.24 to $4.05. What is the percentage increase?

Mathematics
2 answers:
Alisiya [41]3 years ago
5 0
Let initial price be = x = 3.24
final price = y = 4.05
Difference = 4.05 - 3.24
= 0.81
Percentage increase = 0.81 / 3.25 × 100
= 25 %
Vedmedyk [2.9K]3 years ago
3 0
(4.05 - 3.24) / 3.24......x 100
0.81 / 3.24...x 100
0.25.....x 100
25% increase <==
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<h2>Answer with explanation:</h2>

Given : A random sample of five Galaxy 8 smartphones is selected from the production line after final assembly, and the result of the weight control measurement is (in grams) are :

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here, n=5

The average weight :\overline{x}=\dfrac{\sum^{i=5}_{i=1}x_i}{n}

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∴ Average weight (\overline{x})=155.06 grams

Uncertainty = Standard deviation: \sigma=\sqrt{\dfrac{\sum^{i=5}_{i=1}(x_i-\overline{x})^2}{n}}

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i.e. Its uncertainty : \sigma=0.33

The fractional uncertainty = \dfrac{\sigma}{\overline{x}}

=\dfrac{0.33}{155.06}=0.00212820843544\approx0.002

7 0
4 years ago
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