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

based on the data, which age group is most likely to use a navigation system?

• 30–50
• usage equal across all age groups
• over 50
• under 30

Explanation:

Step1: Calculate probability for Under 30

Probability = $\frac{200}{500} = 0.4$

Step2: Calculate probability for 30 - 50

Probability = $\frac{400}{500} = 0.8$

Step3: Calculate probability for Over 50

Probability = $\frac{150}{500} = 0.3$

Step4: Compare probabilities

0.8 (30 - 50) > 0.4 (Under 30) > 0.3 (Over 50)

Answer:

30 - 50