Error in the preface

[Jack Thompson]

The program in Section 1.6 on page 10 of the Python edition has a bug. The program calculates the probabilities of various scores when rolling two dice, however the probabilities are displayed as percentages but not scaled up appropriately. As a result all of the values are 100x smaller than they should be.

The simplest fix is

for n in range(2,13):

    print "%d: %.2f%%" % (n, 100.0*combo[n]/36.0)

Alternatively you could drop the percent signs.

[Steven F. Lott]

Thanks. Additionally. It's all old Python and needs a complete overhaul. 

Sent from my iPhone

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