Answer:0.367
Step-by-step explanation:
Given
There are 6 cans of regular and 7 cans of diet cola
number of ways of selecting 2 regular colas and 1 can of diet cola is
[tex]\Rightarrow ^6C_2\times ^7C_1[/tex]
The total no of ways of selecting 3 items out of 13 items is
[tex]\Rightarrow ^{13}C_3[/tex]
Probability is
[tex]\Rightarrow P=\dfrac{^6C_2\times ^7C_1}{^{13}C_3}=\dfrac{105}{286}\\\Rightarrow P=0.367[/tex]