discrete variable, types of data4. Researchers are concerned that the weight of the average American school child is increasingimplying, among other things, that children’s clothing should be manufactured and marketed inlarger sizes. If X is the weight of school children sampled in a nationwide study, then X is anexample of. a) a categorical variable.. b) a discrete variable.. c) a continuous variable.. d) a table of random numbers.
The correct answer is option c) a continuous variable
The correct answer is option c) a continuous variable.
A variable is considered discrete if it can only take on specific values, typically integers. For example, the number of siblings someone has or the number of cars they own are discrete variables since they cannot have a fraction of a sibling or a fraction of a car.
On the other hand, a continuous variable can take on any value within a certain range. Weight is an example of a continuous variable because it can vary with a decimal or fractional value. In this case, the weight of school children can be any value within a range, from the lowest possible weight to the highest.
It’s important to note that while the weight of an individual child can be measured precisely, in a nationwide study, the weights of school children will be recorded in intervals or ranges, making it a continuous variable.
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Understanding Math: Identifying Continuous Variables and Their Characteristics in Real-Life Scenarios