IMPORTANT NOTE: IN TEXT FORMAT ENTER THE MISSING VALUES AS "NA". YOU MAY ALSO SAVE THE FILE IN .csv FORMAT TO AVOID THIS.

Activity. Now try it. Here is the data that you need to work with:

Age (yr)	Weight (kg)	Number of visits to a physician in 1 year
15	45	2
30	80	4
35	70	2
40	90	6
43	75	3
48	130	5
67	75	3
67	120	8
72	90	5
80	75	7