#1**+1 **

So first, we find the probability that the highly demented dice will land on a 3. You will get 0.12.

If you roll the dice once, the probability of landing on a 3 or 4 is 0.12 + 0.21 = 0.33.

Next up,

0.33 = 33/100.

33/100 * 300 == 99

If you want to estimate, then you round 0.33 to 1/3, and 1/3 * 300 is easily 100.

MATHEXPERTISE Nov 21, 2018

#2**0 **

For estimation I'd already say Face 3 is around a 0.1 probability because \(0.13+0.05\) is around 0.2, \(0.21\) is around \(0.19\) which is around 0.2, and 0.3 is 0.3. Adding we get 0.9 and 1-0.9=0.1

\(0.1+0.2=0.3\) and \(300 \times 0.3=90\).

Therefore I'd estimate around 80-100 times.

You are very welcome!

:P

CoolStuffYT Nov 21, 2018