Quick!

Determine whether the random variable described is discrete or continuous. The number of dental visits a randomly chosen person had for the past 5 years.

Answer: discrete.

Step-by-step explanation:

Discrete variable

It is a variable whose value is evaluated by counting.

Example: Number of books published in a month.

Continuous variable

It is a variable whose value is evaluated by measuring (not countable).

Example: Distance: 1.52 m

Since the number of dental visits a randomly chosen person had for the past 5 years is a countable.

here, Variable: Let X = number of dental visits a randomly chosen person had for the past 5 years

So, the random variable described is discrete.