4 Tb lifetimes, in b s, 6 L ie lig \(\mathbf { b }\) b ad Ee rlw lig \(\mathbf { b }\) b \(\mathbf { b }\) \& tb id \(\mathbf { P } \mathbf { d }\) n id strib in \(\mathrm { N } \left( \mathrm { LS } ^ { 2 } \right)\) adN ( \(\mathrm { L } ^ { 2 }\) ) resp ctie ly.

1. Fid th pb b lity th t to to al 6 th lifetimes 6 fie rach ly cb en \(L \mathbf { b }\) ie \(\mathbf { b }\) b is less th \(\mathrm { HB } \quad \mathrm { Ch } \quad \mathrm { S }\).
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2. Fid th pb b lity th tth lifetime 6 a rach lycb en En rlw b b is at least th ee times th t 6 a rach lyc b erL b ir b b