Data Interpretation & Analysis Flashcards

A chart shows water usage in gallons per day for a household: showers=40, laundry=30, dishes=15, drinking=5, other=10. What percentage of usage is for showers?

Answer: 40%

Total = 100 gallons; showers = 40 gallons; 40 ÷ 100 = 40%.

A bar chart shows job applicants by education level: high school=45, some college=30, bachelor's=60, master's=15. How many total applicants were there?

Answer: 150

45 + 30 + 60 + 15 = 150 total applicants.

A table shows rent prices over 4 years: 2020=$900, 2021=$950, 2022=$1,000, 2023=$1,050. By how much did rent increase from 2020 to 2023?

Answer: $150

$1,050 − $900 = $150 increase over 3 years.

A frequency table shows how many hours per week adults spend exercising: 0-2 hrs=15 people, 3-5 hrs=22 people, 6-8 hrs=10 people, 9+ hrs=3 people. What is the most common exercise range?

Answer: 3-5 hours

The 3-5 hour category has the highest frequency with 22 people.

A graph shows a car dealership sold 120 cars in Q1, 95 in Q2, 140 in Q3, and 105 in Q4. In which quarter were the fewest cars sold?

Answer: Q2

Q2 had the lowest sales at 95 cars.

A table lists calories in meals: breakfast=350, lunch=550, dinner=700, snacks=200. If someone needs 2,000 calories per day, how many calories remain after these meals?

Answer: 200

Total consumed = 1,800; 2,000 − 1,800 = 200 calories remaining.

A line graph shows monthly website visitors: Jan=1,200, Feb=1,500, Mar=1,350, Apr=1,800, May=2,100. Between which two consecutive months was the increase the greatest?

Answer: Mar to Apr

Mar to Apr rose by 450 visitors, which is the largest single-month jump.