Answer:
Experimental Probability of drawing an odd number ball is

Explanation:
Number of times Ball with 1 number drawn = 10
Number of times Ball with 3 number drawn = 12
Number of times Ball with 5 number drawn = 7
Number of times Ball with 7 number drawn = 9
Total no of time balls drawn = 165
No of time odd numbered ball drawn = 10 + 12 + 7 + 9 = 38

Therefore, Experimental Probability of drawing an odd number ball is
