Annual incomes for heads of household in a section of a city have approximately a gamma distribution with $\alpha = 25$ and $\beta = 1,500$.
(a) Use R to find the mean of these incomes.
Use R to find the variance of these incomes.
(b) Use R to calculate the proportion of heads of households in this section of the city that have incomes in excess of $50,000$. (Round your answer to five
decimal places.)
Need Help? Read It
Submit Answer