Assuming the possibility of MTBF (Mean-Time-Between-Failure) within 5 years （5年内平均无故障率）of JS 9mm revolver （警用9mm转轮手枪）is 0.5, the possibility of MTBF within 10 years is 0.3; what is the possibility of MTBF in the next 5 years if some revolvers already have been used in 5 years trouble-free （已经无故障使用5年的枪支再无故障使用5年无故障的概率）（请同时画出样本空间图, 6分）?
Assuming the possibility of MTBF (Mean-Time-Between-Failure) within 5 years （5年内平均无故障率）of JS 9mm revolver （警用9mm转轮手枪）is 0.5, the possibility of MTBF within 10 years is 0.3; what is the possibility of MTBF in the next 5 years if some revolvers already have been used in 5 years trouble-free （已经无故障使用5年的枪支再无故障使用5年无故障的概率）（请同时画出样本空间图, 6分）?
发布时间：2025-03-01 20:50:24
