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    Looks like you can order a print copy of that 1952 paper here,
    although I cannot vouch for how that process might work.<br>
    <br>
    <a class="moz-txt-link-freetext" href="https://www.rand.org/pubs/papers/P183.html">https://www.rand.org/pubs/papers/P183.html</a><br>
    <br>
    <span
style="color: rgb(45, 43, 25); font-family: monument, franklin-gothic-urw, Helvetica, Arial, sans-serif; font-size: 14.9816px; font-style: normal; font-variant-ligatures: normal; font-variant-caps: normal; font-weight: 400; letter-spacing: normal; orphans: 2; text-align: start; text-indent: 0px; text-transform: none; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; white-space: normal; background-color: rgb(255, 255, 255); text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial; display: inline !important; float: none;">Davis,
      Dolores D., An Analysis of Some Failure Data. Santa Monica, CA:
      RAND Corporation, 1952.
      <a class="moz-txt-link-freetext" href="https://www.rand.org/pubs/papers/P183.html">https://www.rand.org/pubs/papers/P183.html</a>. Also available in
      print form.</span><br>
    <br>
    <br>
    <div class="moz-cite-prefix">On 11/25/2024 6:31 AM, Derek M Jones
      wrote:<br>
    </div>
    <blockquote type="cite"
      cite="mid:de8210df-f053-4cd0-8322-c5a90e11f4ea@knosof.co.uk">All,
      <br>
      <br>
      The exponential distribution is now the default
      <br>
      distribution for hardware failure.  This 1958 paper
      <br>
      looks like it might be at the start of the citation
      <br>
      tree
      <br>
      <a class="moz-txt-link-freetext" href="https://apps.dtic.mil/sti/citations/tr/AD0158605">https://apps.dtic.mil/sti/citations/tr/AD0158605</a>
      <br>
      <br>
      Although this 1952 paper has lots of data and also
      <br>
      discusses the exponential distribution.
      <br>
      No paper, yet, behind this link
      <br>
      <a class="moz-txt-link-freetext" href="https://apps.dtic.mil/sti/citations/tr/AD0422811">https://apps.dtic.mil/sti/citations/tr/AD0422811</a>
      <br>
      <br>
      Are there earlier papers than these?
      <br>
      <br>
    </blockquote>
    <br>
    <pre class="moz-signature" cols="72">-- 
Prof. Phil Koopman   <a class="moz-txt-link-abbreviated" href="mailto:koopman@cmu.edu">koopman@cmu.edu</a>   
(he/him)             <a class="moz-txt-link-freetext" href="https://users.ece.cmu.edu/~koopman/">https://users.ece.cmu.edu/~koopman/</a></pre>
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