Val asked a random sample of 50 students at her school

if they brought lunch from home today. If 30 answered

"yes," about what percent of students at Val's school

brought lunch from home today?

ano

A 15%

B50%

C 30%

D 60%

Trey chose B as the correct answer. How did he get that

answer?

The first one, i believe, would be correct. all the others have one thing in common, and that's that they have repeating numbers. in the second one, x and y have repeating 6's and 3's, and in the third, x and y have repeating 6's as well. in the last one, there are repeating 3's. the first one has no repeating numbers.