To find the number of jazz classes given, we first need to determine how many classes of each type there are.
There are 5 types of classes, and the total number of classes conducted over the year is 950. Since the classes are conducted in equal numbers, we can use the following calculation:
Number of classes of each type = Total classes / Number of types = 950 / 5 = 190
Therefore, the number of jazz classes given is:
190