🔢 Math & Numbers Trivia
Quiz Set 6 — Statistics
Answer all 10 questions. Click an option to see if you got it right!
Question 1 of 10
What is the mean of 2, 4, 6, 8, 10?
Mean = (2+4+6+8+10)/5 = 30/5 = 6.
Question 2 of 10
What is the median of 3, 7, 1, 9, 5?
Sorted: 1,3,5,7,9. The middle value is 5.
Question 3 of 10
What is the mode of 2, 3, 3, 5, 7, 3?
3 appears most frequently (3 times).
Question 4 of 10
What does standard deviation measure?
Standard deviation measures how spread out data values are.
Question 5 of 10
What is a bell curve also called?
The bell curve represents a normal (Gaussian) distribution.
Question 6 of 10
What is the range of 4, 8, 15, 16, 23, 42?
Range = maximum - minimum = 42 - 4 = 38.
Question 7 of 10
What does correlation measure?
Correlation measures the strength of the relationship between two variables.
Question 8 of 10
A correlation of -1 indicates what?
A correlation of -1 means a perfect inverse relationship.
Question 9 of 10
What type of graph shows frequency distribution?
Histograms display the frequency distribution of continuous data.
Question 10 of 10
What is the probability of flipping heads on a fair coin?
A fair coin has a 50% (1/2) chance of landing heads.