I really need some help with this probability and statistics question!

Marketing estimates that a new instrument for the analysis of soil samples will be very successful, moderately successful, or unsuccessful, with probabilities 0.3, 0.6, and 0.1, 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. 98.7).

x-------------------------- f(x)
P( X=$10 million) = __?__
P( X=$5 million) = __?__
P( X=$1 million) = __?__

x-------------------------- f(x)
P( X=$10 million) = 0.3
P( X=$5 million) = 0.6
P( X=$1 million) = 0.1

you better read up some basic stuff
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