About 2/3 of the time.
About 2/3 of the time.
You would expect it 0.3 of the times.
The factors of 20 are 1, 2, 4, 5, 10, and 20. We can take 10 and 20 off the list, because they're not on the six-sided dice. So, 4 out of 6 sides of the dice will give us a factor of 20. That means we can expect (if the dice is fair) to get a factor of 20 about 4/6 of the time. 4/6 simplified is 2/3.
7
2, 4, and 6 are multiples of 2. This is 1/2 of the face, so the probability is 1/2
In steep sided, snow covered mountain valleys.
-14
33
30%
If the numerator is a factor of the denominator.
90
1/32