Find the median of the following data.
(a) 27, 39, 49, 20, 21, 28, 38

28

Step-by-step explanation:

write them all out in order and the number that is in the middle is the answer. Meadian=middle

If there is two middle numbers then add them and divide by 2 and thats your answer.  

Easiest way is to write them all out in order and just cross off one on the left then one on the right until you reach the middle

28

Step-by-step explanation:

Median is the middle number of a sequence. This sequence, in order, is 20, 21, 27, 28, 38, 39, 49.

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation: