### Home > MC2 > Chapter 11 > Lesson 11.2.2 > Problem11-41

11-41.

How many times did the coin land heads out of the total 80 times?

$\frac{33}{80}$

How many green marbles are there in the bag?

If 40% of the time, it is a heart, the remaining trials must not have been hearts.

$60 \% \text{ or } \frac{18}{30}$