Answer:
200
Step-by-step explanation:
Given that a fast food chain surveyed a random sample of students to determine what pizza they prefer.
Cheese pizza was preferred by 40 students. Pepperoni was preferred by 28students
Thus the sample of 68 students show that proportion of students who prefer cheese pizza is
[tex]\frac{40}{68} \\=0.5882[/tex]
Since sample proportion can be taken as estimate for population or other sample proportions we get
out of 349 students
expected value of students who prefer cheese pizza=[tex]\frac{40}{68} *340\\=200[/tex]
