Answer:
Step-by-step explanation:
0.912 (C) is the probability that a student who saw an increase in their grade had studied
Answer: C. 0.912
Step-by-step explanation:
From the given table, The probability of students who studied = 0.57
The probability of student who studied for the exam and who saw a raise in their exam grade = 0.52
Now, the probability that a student who studied for the exam saw an increase in their exam grade is given by :
[tex]\text{P(student studied for exam saw an increase in grade)}=\frac{\text{P(student studied and saw raise in grade)}}{\text{P(student studied)}}\\\\\Rightarrow\text{P(student studied for exam saw an increase in grade)}=\frac{0.52}{0.57}\\=0.91228070175\approx0.912[/tex]
