Mathematics, 12.08.2020 07:01 isabella20142002
A total of n bar magnets are placed end to end in a line with random independent orientations. Adjacent like poles repel while ends with opposite polarities join to form blocks. Let X be the number of blocks of joined magnets. Find E(X) and Var(X).
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![= \frac{1}{4} [ n - 1 ]](/tpl/images/0719/5198/63060.png)
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A total of n bar magnets are placed end to end in a line with random independent orientations. Adjac...
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