Definition: You are given a math word problem and you are supposed to apply multiple mathematical operators like addition, subtraction, multiplication or division on the numbers embedded in the text to answer the following question and then only report the final numerical answer.
Input: A bowl contains 4 red chips , 3 blue chips , and 9 green chips . You choose 1 chip at random . What is the probability that your chip is not red ?
Output:
0.75