Respuesta :
Answer:
The expected number of pizza servings is 270.
Step-by-step explanation:
Food Item Preferred Number of Students
pizza 27
cheeseburger 14
salad bar 9
Now we have been given that Fifty students were randomly selected to take part in a survey about their favorite school lunch. The school will be serving 500 lunches;
This means 10% of the total lunches or students were selected. So, if 27 students prefer pizza this means its 10 times will be needed for the whole lot making it [tex]27\times10=270[/tex] pizzas.
Similarly, 140 cheeseburgers and 90 salad bars will be served making a tital of = [tex]270+140+90=500[/tex] lunches.