Final answer:
Using proportional reasoning, approximately 46.67% of the students surveyed by Maxine wore jeans; thus, it would be predicted that 196 out of 420 7th graders would wear jeans on Friday. None of the given options are correct.
Step-by-step explanation:
To predict the number of 7th graders who wear jeans on Friday, we can use proportional reasoning based on the survey results provided by Maxine.
She found that out of 60 students, 28 wore jeans. This means approximately 46.67% of the students sampled (28 out of 60) chose to wear jeans.
Applying this percentage to the entire 7th grade class of 420 students, we can calculate the expected number of students who would wear jeans as follows:
First, convert the percentage to decimal: 46.67% = 0.4667.
Next, multiply the decimal by the total number of 7th graders: 0.4667 * 420 = 196 (rounded to the nearest whole number).
Therefore, a good prediction for the number of 7th graders who wear jeans on Friday at WMS would be approximately 196 students.
None of the given options are correct.