Posts Tagged ‘ conditioning ’

Cross validated question

February 19, 2012
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Cross validated question

Another problem generated by X’validated (on which I spent much too much time!): given an unbiased coin that produced M heads in the first M tosses, what is the expected number of additional tosses needed to get N (N>M) consecutive heads? Consider the preliminary question of getting a sequence of N heads out of k

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Example 7.4: A prettier jittered scatterplot

July 2, 2009
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Example 7.4: A prettier jittered scatterplot

The plot in section 7.3 has some problems. At the very least, the jittered values ought to be between 0 and 1, so the smoothed lines fit better with them. Once again we use the data generated in section 7.2 as an example. For both SAS and R, we use conditioning (section 1.11.2) to make the jitter happen...

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