devoir de maths en anglais : the probablility that Amanda is late for school is 0.4.Use a tree diagram to find the probability that on two days in a row.1).she
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Question
devoir de maths en anglais : the probablility that Amanda is late for school is 0.4.Use a tree diagram to find the probability that on two days in a row.1).she is late twice.2)she is late exactly once.3)she's never late.4)what can be verified? aidez moi
1 Réponse
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1. Réponse laurance
late(0,4)
late(0,4)
first day second day not late (0,6)
late (0,4)
not late(0,6)
not late (0,6)
1)0,4 x 0,4 = 0,16
2)0,4x0,6+0,6x0,4 = 0,24+0,24 = 0,48
3)0,6x0,6= 0,36
4)0,16+0,48+0,36= 1