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 .Based on the results how many of the 340 students can be expecated to prefer cheese pizza

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

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=

1.3

step-by-step explanation:

3x2=6   9x+6

bring down the 6 on both sides

6+6=12

12= 9x

divide by 9

12/9 =

1.3 =x