Skip to main content
. 2007 Dec 18;9(3):458–466. doi: 10.1093/biostatistics/kxm047

Table 1.

Probability of heads when flipping a randomly selected coin, under 2 hypotheses

Hypothesis Heads probability
Conditional on coin type Unconditional
Nickel Quarter
Nickels biased toward heads 0.80 0.10 0.73
Quarters biased toward heads 0.10 0.80 0.17

Coin is selected from a bag containing 90% nickels and 10% quarters.