Answer: .012
Explanation:
We know that when two events A and B are independent of each other , then the probability of their intersection is given by :-
![P(A\cap B)=P(A)\ \cdot\ P(B)](https://img.qammunity.org/2020/formulas/mathematics/middle-school/4dcsh6oo9avklyq8g47a0fv2jii2ffeni7.png)
Given : The probability that a shopper buys shoes is 0.12
The probability that a shopper buys a book is 0.10
Since, both the events are independent , then the probability that a shopper buys shoes and a book is given by :-
![0.12*0.10=0.012](https://img.qammunity.org/2020/formulas/mathematics/middle-school/vkd8xpfge8tpn9kltfd23ah8xgtd0m4zfe.png)
Hence, the probability that a shopper buys shoes and a book is .012 .