Data Interpretation Flashcards

A bar chart shows burglaries: Jan=40, Feb=35, Mar=50, Apr=45. Which month had the most burglaries?

Answer: March

March had 50 burglaries, which is the highest value in the data set.

A pie chart shows crime types: theft 40%, assault 25%, drug offences 20%, other 15%. Which is the smallest category?

Answer: Other

'Other' at 15% is the smallest segment in the pie chart.

Data: Station A had 120 incidents in Q1 and 150 in Q2. What is the percentage increase from Q1 to Q2?

Answer: 25%

Increase = 150 − 120 = 30. Percentage = (30 ÷ 120) × 100 = 25%.

A line graph shows crime declining steadily from 500 in 2020 to 380 in 2023. What is the average annual reduction?

Answer: 40

Total reduction = 500 − 380 = 120 over 3 years. Average annual = 120 ÷ 3 = 40.

Table: District A=200 crimes, District B=150, District C=250, District D=100. Total crimes = 700. What % of crimes are in District C?

Answer: 35.7%

District C = 250. Percentage = (250 ÷ 700) × 100 = 35.71%, approximately 35.7%.

Data shows response times: Mon=8min, Tue=6min, Wed=9min, Thu=7min, Fri=5min. What is the median response time?

Answer: 7 minutes

Ordered: 5, 6, 7, 8, 9. The median (middle value) of 5 values is the 3rd = 7 minutes.