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: 500, 100, 150, 400

Explanation:

Step1: Identify the row and column

We need the joint frequency for drivers aged 30 - 50 (row) who do not use navigation (column "Does Not Use Navigation (No)").

Step2: Find the value in the table

Looking at the table, in the row "30 - 50" and column "Does Not Use Navigation (No)", the value is 100.

Answer:

100