RCAT Data Interpretation 1 — Questions and Answers
Question 1: A bar chart shows monthly sales: Jan=500, Feb=600, Mar=450, Apr=700, May=550. What is the average monthly sales?
- 560 (Correct answer)
- 580
- 550
- 600
Correct answer: 560
(500+600+450+700+550) ÷ 5 = 2800 ÷ 5 = 560.
Question 2: A pie chart shows: Category A = 40%, B = 25%, C = 20%, D = 15%. If the total is 200 items, how many are in Category B?
- 50 (Correct answer)
- 40
- 25
- 80
Correct answer: 50
25% of 200 = 0.25 × 200 = 50 items.
Question 3: A line graph shows revenue growing from $10,000 in Year 1 to $16,000 in Year 5. What is the percentage increase?
- 60% (Correct answer)
- 50%
- 6%
- 40%
Correct answer: 60%
Percentage increase = (16,000−10,000)/10,000 × 100 = 60%.
Question 4: A table shows test scores: 72, 85, 91, 68, 79, 85, 90, 77. What is the median score?
- 82 (Correct answer)
- 79
- 85
- 80.9
Correct answer: 82
Sorted: 68,72,77,79,85,85,90,91; median = (79+85)/2 = 164/2 = 82.
Question 5: A scatter plot shows a strong positive correlation between hours studied and test scores. A student studies 8 hours. Based on the trend, their score is most likely:
- Higher than those who studied 5 hours (Correct answer)
- Lower than those who studied 5 hours
- The same as those who studied 5 hours
- Cannot be determined
Correct answer: Higher than those who studied 5 hours
A positive correlation means more hours studied is associated with higher scores, so 8 hours should yield a higher score than 5 hours.
Question 6: A table shows production: Mon=120, Tue=135, Wed=115, Thu=140, Fri=130. What day had production closest to the weekly average?
- Friday (Correct answer)
- Monday
- Wednesday
- Tuesday
Correct answer: Friday
Average = (120+135+115+140+130)/5 = 640/5 = 128; Friday (130) is closest to 128.
RCAT Data Interpretation 1
A bar chart shows monthly sales: Jan=500, Feb=600, Mar=450, Apr=700, May=550.
What is the average monthly sales?