A salesman can contact either one or two customers per day with probability 1/3 and 2/3 respectively. Each contact will result in either no sale or a $20,000 sale with probability 9/10 and 1/10 respectively. What is the distribution of the random variable.
X = daily sales in $.
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Use this distrbution to find the expected value and variance of his daily sales
2. The Parteo distribution,with paramters ,has pdf
a) Verify that f(x) is a pdf.
b) Derive the mean and variance of this distribution
c) Show that the variance does not exist, i.e, its value is infinetely large, if
3. Consider an exponential distribution with parameter B>0, i.e, its pdf is
a) Prove that its momento generating function, i.e,
b) Derive the pdf of the transformed random variable
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