PAPA PAPA Data Interpretation & Statistics 2 — Questions and Answers
Question 1: A table shows 5 students scored: 88, 92, 76, 88, 96. What is the median?
- 88 (Correct answer)
- 92
- 76
- 87
Correct answer: 88
Ordered: 76, 88, 88, 92, 96 — the middle (3rd) value is 88.
Question 2: A scatter plot with points trending upward from left to right shows:
- No correlation
- A negative correlation
- A positive correlation (Correct answer)
- A random distribution
Correct answer: A positive correlation
An upward trend in a scatter plot indicates a positive correlation between the two variables.
Question 3: If a graph's y-axis does not start at zero, the graph may:
- Be easier to read
- Exaggerate differences between values (Correct answer)
- Accurately represent proportions
- Show more data points
Correct answer: Exaggerate differences between values
A truncated y-axis can make small differences appear much larger than they actually are.
Question 4: Which measure of central tendency is most affected by extreme values (outliers)?
- Mode
- Median
- Mean (Correct answer)
- Range
Correct answer: Mean
The mean is calculated using all values, so a very large or very small outlier can significantly shift it.
Question 5: A two-way table displays data comparing gender and preferred subject. This table best helps you analyze:
- Trends over time
- The relationship between two categorical variables (Correct answer)
- Continuous data changes
- Individual scores
Correct answer: The relationship between two categorical variables
Two-way tables organize data to show frequency distributions across two categorical variables simultaneously.
Question 6: In probability, an event with a probability of 0 means:
- The event is certain to occur
- The event cannot occur (Correct answer)
- The event occurs half the time
- The probability is unknown
Correct answer: The event cannot occur
A probability of 0 means there is no chance the event will happen.
PAPA PAPA Data Interpretation & Statistics 2
A table shows 5 students scored: 88, 92, 76, 88, 96.
What is the median?