Q18. - Algebra 2 | StudyQuestionHub

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Q18.

Question

For exercise 15 and 18, use the table below that shows the elevation and average precipitation for selected cities.

City	Elevation (feet)	Average Precip. (inches)
Rome, Italy	79	33
Algiers, Algeria	82	27
Istanbul, Turkey	108	27
Montreal, Canada	118	37
Stockholm, Sweden	171	21
Berlin, Germany	190	23
London, England	203	30
Paris, France	213	26
Bucharest, Romania	298	23
Budapest, Hungary	456	20
Toronto, Canada	567	31

18. Compare your prediction to the actual value of 29 inches.

Step-by-Step Solution

Verified

Answer

The predicted value differs from the actual value by more than 20%.

1Step-1 – Percentage calculation.

The formula used to calculate percentage is $P e r c e n t a g e = \frac{p a r t}{W h o l e} \times 100 %$

2Step-2 – Determine the difference.

The difference of actual and predicted value is $29 - 23 = 6$ .

$\begin{array}{l} P e r c e n t a g e = \frac{6}{29} \times 100 % \\ \approx 20 % \end{array}$

3Step-3 – Reason for predicted value differs from the actual value.

The predicted value differs from the actual value by more than 20%, possibly because no line fits the data very well.

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