Hi, what kind of graph are you dealing with?
In any case a RATE is a ratio in which (1) there is a unique relationship between the NUMERATOR and the DENOMINATOR; (2) TIME is an intrinsic part of the DENOMINATOR
The incidence (new colds) was 55 per 1000 students during the 3 months of the fall semester
In a RATE, the NUMERATOR is a subset of the DENOMINATOR: the number of students with colds in the 3 months of the fall semester is the numerator and the total number of students at risk for colds is the denominator.
For example: if 870 of 15,975 students had colds in the fall semester, then the RATE of colds is 870colds/15,975 students at risk for colds, or a RATE of .0545 colds/student, or about 55 colds per 1000 students over 3 months.
So once this concept is understood, a graph can be made to reflect the data and the calculation of a rate.
By the way these are real life events where math is vital to answer health and medical questions.
All the best!
Hi, what kind of graph are you dealing with?
In any case a RATE is a ratio in which (1) there is a unique relationship between the NUMERATOR and the DENOMINATOR; (2) TIME is an intrinsic part of the DENOMINATOR
The incidence (new colds) was 55 per 1000 students during the 3 months of the fall semester
In a RATE, the NUMERATOR is a subset of the DENOMINATOR: the number of students with colds in the 3 months of the fall semester is the numerator and the total number of students at risk for colds is the denominator.
For example: if 870 of 15,975 students had colds in the fall semester, then the RATE of colds is 870colds/15,975 students at risk for colds, or a RATE of .0545 colds/student, or about 55 colds per 1000 students over 3 months.
So once this concept is understood, a graph can be made to reflect the data and the calculation of a rate.
By the way these are real life events where math is vital to answer health and medical questions.
All the best!
