Mentorship Electronic Journey: Measuring the Probability Density of Random Noise

Mentorships during early Covid-19, through the current post Covid years provided many challenges. Here, middle school and high school mentees required vital parental involvement as locations shifted to public restaurants or libraries which provided AC outlets, well-lit tables and welcomed patrons to study, work or hold tutoring sessions. During this period a parent [MRP], with home schooling experience, provided guidance and helped mentor a 5th and 8th grader transition to their next grades. Their Do It Yourself (DIY) electronic projects became the building blocks of a circuit to generate electronic white Gaussian noise and plot the probability density function (pdf), voltage bin vs. # of counts. The pdf circuit included (a) a sequence stepped voltage window comparator, (b) chopped (multiplied) by a fast (100 microsecond) clock, (c) coupled to a digital counter (6 segment display), such that (d) a binned hystogram pdf could be plotted.