I’m confused please help?

Acoin is tossed twice. let e e be the event "the first toss shows heads" and f f the event "the second toss shows heads". (a) are the events e e and f f independent? input yes or no here: yes (b) find the probability of showing heads on both toss. input your answer here: preview

Over the course of a month, a person's weight decreases. what type of relationship is this? a. positive relationship

What unit of been sure would be appropriate for the volume of a sphere with a radius of 2 meters