Answer: Pie chart.
- A Histogram
- B Bar graph
- C Pie chart
- D Line graph
Correct answer: C. Pie chart
Explanation: A pie chart divides a circle into sectors proportional to the frequencies of categories.
In a perfectly normal (bell-shaped) distribution, mean, median, and mode all coincide at the centre; about 68% of data falls within 1 standard deviation of the mean, 95% within 2, and 99.7% within 3 - the empirical rule used to judge how typical or extreme a value is.
Concept context
Mean, median, mode, standard deviation, and data interpretation