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Generating Random Numbers from an Exponential Distribution

The probability density function (pdf) can be very helpful in analyzing data sets. There are numerous ways to think about the pdf. For example, it was presented from the perspective of histograms in Reliability Hotwire Issue 12. In this article, we consider the pdf from the perspective of a random number generator, and present two ways to generate random numbers from an exponential distribution. First, we will show you how to generate random numbers from an exponential distribution using ReliaSoft Weibull++ by HBM Prenscia. Second, assuming we can generate random numbers between 0 and 1, we will show you how to manually generate random numbers from an exponential distribution using those random numbers. This approach is the basic algorithm used by the Monte Carlo tool; as you will see, the tool can save you considerable time and effort.


Read the Latest Reliability News

ARDC Call for Papers

ARDC North America will take place June 26 - 28, 2018 in Portland, Oregon. If you wish to share the experiences that have helped shape your reliability and durability career by presenting at this event, please submit your proposal by December 15, 2017. The primary author for each presentation delivered at the conference will receive complimentary registration to the event. Complete details, including the required proposal form, are available for your review at:


Get Exposure for Your Organization at ARDC

Become a Sponsor or Exhibitor at any of the upcoming ARDC events, and your organization can gain exposure to thousands of potential attendees through ARDC marketing efforts. The recognition will enhance your ability to network at ARDC, demonstrate your expertise and influence ARDC attendees with your leadership. Plus, with different levels of sponsorship, you can find something that fits your organization's needs. Learn more about it at:


ReliaSoft Solutions at IVT Symposium 2017

HBM Prenscia will be exhibiting at the Electric and Hybrid Industrial Vehicle Technology Symposium in Cologne, Germany on November 14 –15. Visit us at our booth to talk with our experts and to learn more about our engineering solutions. If you're not able to attend the event, you can learn more about ReliaSoft solutions at:

Reliability HotWire is a service of HBM Prenscia Inc.
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