# 寿命阶梯 — 从删失观测复核存活概率

> 从删失观测复核存活概率 (iPhone/iPad app by MUHAMAD FARIS HAIKAL BIN ZALUDIN.)

- Source: https://appshunter.io/ios/app/id6828746811 (this page in markdown: same URL + `.md`)
- Developer: [MUHAMAD FARIS HAIKAL BIN ZALUDIN](https://appshunter.io/developer/6832407314)
- Category: Education
- Price: Free
- Age rating: 4+
- Requires: iOS 15.0 · 32 MB
- Released: 2026-11-05
- Data updated: 2026-11-10

## What is 寿命阶梯?

寿命阶梯面向学习可靠性统计的学生，用2种不同标记保留零件实际失效与右删失的观测。给每件零件填写编号、统一单位的观察时间及A/B批次，曲线会按失效时点逐级下降，删失只改变后续风险人数。 首页的存活阶梯可点选时刻，展开当时的风险集名单、失效和删失数量、乘积因子、Greenwood标准误及95%对数对数区间。同刻失效与删失采用先失效后删失的规则，方便手工复算。 设定积分截止时间可计算受限平均寿命；超过最后观察时刻时不会外推。中位存活时间未达到时，结果会明确显示。批次页用实线与虚线比较A/B曲线，列出共同失效时刻的风险人数、实际失效、期望失效和方差，给出对数秩统计量及卡方近似p值。 分析册保存原始观测、截止时间和整套风险集证据。后续修改工作台不会覆盖已保存结果，可恢复或复用观测开展修订、补充备注，并通过系统分享导出课程报告。

## Is 寿命阶梯 safe?

Not enough ratings yet to assess 寿命阶梯.

## Is 寿命阶梯 legit?

寿命阶梯 has limited verification signals. The AppsHunter Legitimacy Score for 寿命阶梯 is 58 out of 100 points across 7 verification signals from App Store and developer data.


## Version history (last 2 releases)

### 1.0.1 — 2026-11-08

优化用户的使用体验

### 1.0.0 — 2026-11-05

No release notes.

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-11-10.*