List of the all the rolls whose sum is greater than or equal to 10 red and other black. \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
\
| \
The probability of rolling a sum greater than or equal to 10.
\Therefore or
The probability of rolling a sum of 9 or lower is .
The probability of rolling a sum of 9 or lower is .