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.

age group	uses navigation (yes)	does not use navigation (no)	total
30–50	400	100	500
over 50	150	350	500
total	750	750	1,500

what is the joint frequency of drivers aged 30–50 who do not use a navigation system?
options: 400, 100, 500, 150

Explanation:

Step1: Identify the row and column

We need the joint frequency for drivers aged 30 - 50 (row) and who do not use navigation (column).

Step2: Find the cell value

Looking at the table, the cell where Age Group is 30 - 50 and Does Not Use Navigation (No) intersects has the value 100.

Answer:

100