Ben takes a random sample of 25 students in his seventh grade class and finds that 85% of the sample prefers math over science. there are 150 students in the seventh grade. based on the sample proportion, about how many students in the seventh grade would be expected to prefer math over science

Part 1 : Ben takes a random sample of 25 students in his seventh-grade class and finds that 85% of the sample prefers math over science. There are 150 students in the seventh grade. Based on the sample proportion, about how many students in the seventh grade would be expected to prefer math over science?

Option 1 : 25

Option 2 : 85

Option 3 : 150

Option 4 : 128

Solutions - Convert the percent into decimal and multiply.

85% of 150 = 0.85 * 150

= 127.5 which is rounded to 128