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Mathematics, 11.12.2019 17:31 ethannila

Kira was a spectator at her town's air guitar competition. contestants were allowed to play either the acoustic or electric air guitar, but not both. kira recorded which type of guitar each contestant played. she also counted the number of contestants wearing different kinds of pants, as there were some interesting stylistic choices. the probability that a contestant played an acoustic guitar is 0.4, the probability that a contestant was dressed in sequins is 0.3, and the probability that a contestant played an acoustic guitar and was dressed in sequins is 0.1.

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