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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? A: ________

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sqdancefan

Answer:

  18 °F

Step-by-step explanation:

The means are calculated in the usual way: add up the numbers and divide by the number of them. When there are a bunch of numbers, it is convenient to let a calculator or spreadsheet compute the mean for you.

In the attached, we see the mean for week 1 is 52°, and in week 2, it is 70°. The mean is 70° -52° = 18° greater in week 2.

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