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Shalnov [3]
3 years ago
7

The data below shows the temperature of the water in a swimming pool over a two week period. Week 1 Day Temperature (°F) Monday

58 Tuesday 48 Wednesday 49 Thursday 61 Friday 58 Saturday 51 Sunday 39 Week 2 Day Temperature (°F) Monday 68 Tuesday 74 Wednesday 73 Thursday 75 Friday 70 Saturday 67 Sunday 63 How many degrees greater is the mean temperature in week 2 than in week 1? a0°
Mathematics
1 answer:
larisa86 [58]3 years ago
3 0

week 158 + 48 + 49 + 61 + 58 + 51 + 39 \\  = 364 \\ 364 \div 7 = 52
week 2
68 + 74 + 73 + 75 + 70 + 67 + 63  \\  = 490 \\ 490 \div 7 = 70
difference
70 - 52 = 18
the difference is 18 degrees between the means
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Answer:

<em>Option c</em>

Step-by-step explanation:

<u>Best Fit Regression Model </u>

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One of the most-used tools to find relations between variables is the regression model and its best fit lines to try to find an expression who relates variable x (years from 1960) and variable y (minimum wage requirement) as of our case.

The provided data was entered into a digital spreadsheet and an automatic function was applied to find the best-fit model.

We found this equation:

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when rounded to three decimal places, we find

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Step-by-step explanation:

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