Answer: 
Step-by-step explanation:
Given : The number of blue chips in the bag = 7
The number of gold chips in the bag = 3
Total number of chips : 7+3=10
Now, the probability of randomly choosing a blue chip not replacing it, and then randomly choosing another blue chip is given by :-

Hence, the probability of randomly choosing a blue chip not replacing it, and then randomly choosing another blue chip 