PAPA PAPA Data Interpretation & Statistics 1 — Questions and Answers
Question 1: A bar graph shows scores of 70, 80, 85, 90, and 75. What is the mean score?
- 80 (Correct answer)
- 82
- 78
- 85
Correct answer: 80
The mean is (70+80+85+90+75)÷5 = 400÷5 = 80.
Question 2: In a data set, the value that appears most frequently is called the:
- Mean
- Median
- Mode (Correct answer)
- Range
Correct answer: Mode
The mode is the value that occurs most often in a data set.
Question 3: A pie chart shows that 40% of students prefer math. If there are 200 students, how many prefer math?
- 40
- 60
- 80 (Correct answer)
- 100
Correct answer: 80
40% of 200 = 0.40 × 200 = 80 students.
Question 4: The range of the data set {4, 7, 13, 2, 9} is:
- 7
- 9
- 11 (Correct answer)
- 13
Correct answer: 11
Range = maximum − minimum = 13 − 2 = 11.
Question 5: Which type of graph is best suited for showing changes in data over time?
- Pie chart
- Bar graph
- Line graph (Correct answer)
- Pictograph
Correct answer: Line graph
Line graphs are ideal for displaying trends and changes in data over a continuous period of time.
Question 6: In a set of test scores, the median is the:
- Most frequent score
- Average of all scores
- Middle value when scores are ordered (Correct answer)
- Difference between highest and lowest
Correct answer: Middle value when scores are ordered
The median is the middle value when data is arranged in ascending or descending order.
PAPA PAPA Data Interpretation & Statistics 1
A bar graph shows scores of 70, 80, 85, 90, and 75.
What is the mean score?