Students (# = 32) | ||

Group A + B | Mean hit rate (# of answered pairs/40 × 32) | 0.6805 (871/1280) |

(2834 words) | Estimated density ${p}_{A+B}$ | 0.1078 |

[# of each type in 871 answered pairs] | AA = 162, AB = 427, BB = 282 | |

Group B | Mean hit rate (# of answered pairs/40 × 32) | 0.5961 (763/1280) |

(1744 words) | Estimated density ${p}_{BB}$ | 0.0867 |