Statisticseasy · Past Paper
What is the first quartile (Q1) of 1, 2, 3, 4, 5?
A1
B1.5
C2
D2.5
✓ Correct Answer: B — 1.5
Q1 position = (5+1)/4 = 1.5th term. Average of 1st and 2nd term = (1+2)/2 = 1.5.
Share this question
More from Statistics
- Find the weighted mean of 10, 20, 30 with weights 1, 2, 3 respectively.
- In a distribution, if the mean is 25 and the median is 25, the distribution is most likely:
- In a data set of 10 students' marks: 40, 45, 50, 50, 60, 65, 70, 75, 80, 85, what is the range of the marks?
- The geometric mean of 2 and 8 is:
- Find the Q1 of a continuous series where N=100, lower limit of Q1 class is 10, h=10, f=20, and cf=15.