Question

which of the following is most likely to be a discrete variable the speed of your car the average winter temperature the number of classes a nursing student would take in one semester or the length of time you hold your breath

Answer 1

we know that discrete data variable can take only whole numbers whereas continuous data variables can take any real number

speed of car is not a discrete variable because can be expressed as 80.5kmph or 91.7 kmph. So, this is not discrete

average winter temperature is not a discrete variable because average can be any decimal value. So, it is not discrete variable

number of classes a nursing student would take in one semeter is a discrete variable because the number of classes can only be expresses as 1,2,8 or 15 etc, but not 1.5 classes. So, this is correct answer

length of time to hold breath is not a discrete variable because length of time can be expressed in decimal format. So, it is not a discrete variable