For this specific problem, this would be the solution:
<span><span>= 0.7(133) + 0.8(133) - 2(0.4[133]) </span><span>
<span>= 93 +
106 - 2(53) </span>
<span>= 199 -
106 </span>
<span>= 93 </span></span></span>
This means 93 students passed in both the subjects. I am hoping that
this answer has satisfied your query about and it will be able to help you.
The answer is C. It has the wrong graph labels.