There is two parts to this question they are both screenshotted.

Can someone answer these problems for me

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

Find the constant of variation for the relation and use it to write an equation for the statement. then solve the equation.