Final answer:
In a community property state, Jarrod and Janice would each be deemed to have earned $50,000 of the total $100,000 gross income for federal income tax purposes.
Step-by-step explanation:
In a community property state, income earned during marriage is typically considered to be owned equally by both spouses, regardless of who earned it. Since Jarrod's salary of $98,000 and the jointly owned investment income of $2,000 were both earned during the marriage, the total gross income of $100,000 would be split evenly between Janice and Jarrod for federal income tax purposes. So, Jarrod is deemed to have earned $50,000 and Janice is deemed to have earned $50,000.