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chapter 1

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Chapter 1: Overview and Descriptive Statistics26.a.Class Intervals Frequency Rel. Freq..15 -< .25 8 0.02192.25 -< .35 14 0.03836.35 -< .45 28 0.07671.45 -< .50 24 0.06575.50 -< .55 39 0.10685.55 -< .60 51 0.13973.60 -< .65 106 0.29041.65 -< .70 84 0.23014.70 -< .75 11 0.03014n=365 1.00001654Density32100.150.250.35 0.45 0.500.550.60 0.650.700.75clearness8 + 4365b. The proportion of days with a clearness index smaller than .35 is ( ) = . 0684 + 11365c. The proportion of days with a clearness index of at least .65 is ( ) = . 26, or 6%., or 26%.15

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