Question: Income tax returns Here is the distribution of the adjusted gross income (in thousands of dollars) reported on individual federal income tax returns in a recent year:
![526_Income.png](https://secure.tutorsglobe.com/CMSImages/526_Income.png)
(a) What is the probability that a randomly chosen return shows an adjusted gross income of $50,000 or more?
(b) Given that a return shows an income of at least $50,000, what is the conditional probability that the income is at least $100,000?