[填空题]
The probability that Amanda q2w .v1cszm)jsuccessfully py,xik+c)qi d6 asses her maths exam depends on the exam topic. The probability that the topic is statistics is 0.35 and the probability she passes this topic is only 0.3. The probability that Amanda passes any other topic during the exam is 0iqy+),xi cdk 6.8.
1.Complete the following tree diagram.
2.Find the probability that Amanda does not pass the exam.
