Statistics assignment Project Example | Topics and Well Written Essays - 500 words

Assignment - Statistics Project Examplewhere X1 , X2 , X3 argon the three test scores and X is the final score. Assume that your test scores are (integer) values between 1 and 10 with equal probability 1/10, independently from severally other. What is the probability mass function of the final score?Q6. (10) The underpass train arrives at the station, always on time, near your home each quarter hour starting at 600 AM. You walk into the station every morning between 710 and 730 AM, with the time in this interval being a uniform random variable.The look on is the nigh commonly-used measure of central tendency in a distribution. The mean is valid only for interval data. Since it uses the values of all of the data points in the populations or sample, the mean is influenced by outliers that may be at the extremes of the data set. On the other hand, the median can be determined for ordinal data as fountainhead as interval data. Unlike the mean, the median is not influenced by outlier s at the extremes of the data set.Q8. (10) A system consists of 3 components arranged in series. The lifetime (in days) of each component follows approximately an exponential distribution with a mean lifetime of 100 days. The lifetimes of the components are independent.Where p1(x, ), p2(x, ), p3(x, ) are three independent exponential distributions in parallel. afterward some algebra and if we take q as any of the three independent exponential distributions, q = p1 or q = p2, q = q3, q =