If ABC is reflected across the yaxis, what are the coordinates of A?
8
8
6
4
Á
A
+
-8
-6
-4
-2
2
4
6
8
-2
-4
-6
-8+
O A. (4,2)
B. (4-2)

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