First we have to find how many chose cat: 100-48-14-2= 36%. Because the whole thing is 100% and I removed all the other animals to find the percentage of cats chosen. Then we want to know the number of classmates: Cat= 36% of 50 people = 0.36 x 50=18 Fish= 14% of 50 people = 0.14 x 50= 7 Now we see the difference between them : 18-7=11 people
