Marketing estimates that a new instrument for the analysis of soil samples will be very successful, moderately successful, or unsuccessful, with probabilities 0.2, 0.5, and 0.3, respectively. the yearly revenues associated with a very successful, moderately, or unsuccessful product are $10 million, $5 million, and $1 million, respectively. let the random variable x denote the yearly revenue of the product. determine the probability mass function of x. round your answers to one decimal place (e. g. 9