Q: What is the percentage of students in the first group who meet the standards? Analysis: Because jumps of 1.7m and above are considered as up to standard, the number of centimeters exceeding 1.7m is represented by a positive number, and the number of centimeters less than 1.7m is represented by a negative number, so a score of 0 or a positive number is considered as up to standard, and one * * * has seven, which is the demand after dividing by the total number of people. Solution: The number of qualified people is 7, so the qualified rate is × 100.
A: 70% of the students in the first group met the standard. I hope I can help you. .