Sixth grade students line up to do radio exercises. The number of people in each line is proportional to the number of lines______ When the oil yield is constant, the quality of peanut oil is equal to that of peanut______ Proportion

Sixth grade students line up to do radio exercises. The number of people in each line is proportional to the number of lines______ When the oil yield is constant, the quality of peanut oil is equal to that of peanut______ Proportion

① The number of people in each row × the number of rows = the total number of people (a certain number), which is the product of a certain number, and the number of people in each row is inversely proportional to the number of rows; ② the quality of peanut oil △ the quality of peanut = the oil yield (a certain number), which is a certain ratio, and the quality of peanut oil is positively proportional to the quality of peanut; so the answer is: negative, positive

If the total number of people is fixed, whether the number of people on duty and the number of people who are not on duty are in direct proportion, explain the reasons

If the total number of people is fixed, whether the number of people on duty and the number of people who are not on duty are in direct proportion, explain the reasons
The ratio of attendance to non attendance is not constant, so it is not proportional

The number of people in each group is fixed. What is the proportion between the total number and the number of groups? Explain the reasons
The number of people in each group is fixed. What is the proportion between the total number and the number of groups? Explain the reasons

Because the number of people in each group is equal to the total number of people in each group, and the number of people in each group is fixed, so they are in a positive proportion;