Answer: 0.30
Step-by-step explanation:
Let T denotes tater tots and F denotes French fries .
As per given ,
The proportion of students said they liked tater tots : <em>P(T)=</em> 0.30
The proportion of of students said they like French fries : <em>P(F)</em>= 0.15
Since , every one of the students who said they like French fries also said they like tater tots.
i.e. <em>P(T∩F)</em> = 0.15
Now , using addition formula , we have
<em>P(T∪F)= P(T)+P(F)-P(T∩F)</em>
= 0.30+0.15-0.15=0.30
Hence, the proportion of the students responding to the survey said they liked at least one of the two side dishes is 0.30.