As per given by the question,
There are given that 26 successfull outcomes in a sample size of 50.
Now,
Sample size=50
Successfull outcomes =26.
Then,
The sample proportion is,
[tex]\frac{26}{50}[/tex]Then,
Their value will be;
[tex]\frac{26}{50}=0.52[/tex]Hence, the option D (0.52) is correct.