If the probability of trowing a score of seven with 2 dices is ⅛ ,what is the probability of not throwing a score of seven

The random variable x is the number of occurrences of an event over an interval of ten minutes. it can be assumed that the probability of an occurrence is the same in any two-time periods of an equal length. it is known that the mean number of occurrences in ten minutes is 5.3. the appropriate probability distribution for the random variable

If you answer 2+2 you will get over 80 points

Ihonestly have no clue if it's each or none.