Answer: 0.77
Explanation:
Given : The number of interior designers = 400
The number of interior designers prefer red = 92
The number of interior designers do not prefer red =
![400-92=308](https://img.qammunity.org/2020/formulas/mathematics/college/p6h3k8y2ax5lfoxgxejt4hv6rzc44w5sza.png)
Now, the probability that a designer does NOT prefer red is given by :-
![\frac{\text{Number designers do not prefer red}}{\text{Total designers}}\\\\=(308)/(400)=0.77](https://img.qammunity.org/2020/formulas/mathematics/college/5f4xtpce2cb623j72p1ix1dqar7fjxup26.png)
Hence, the probability that a designer does NOT prefer red = 0.77