Question

two - way table scenario
the table categorizes drivers into age groups (under 30, 30 - 50, over 50) and whether they regularly use a navigation system (yes, no). data in the table is based on a fictional dataset.
what is the joint frequency of drivers aged 30 - 50 who do not use a navigation system?

Explanation:

Step1: Understand joint frequency

Joint frequency is the number of data points that belong to two specific categories simultaneously.

Step2: Locate the relevant cell

In the table, we look for the cell where the row is "Does Not Use Navigation" and the column is "30 - 50".
The value in that cell is 100.

Answer:

100