Statisticshard · Past Paper
If the ratio of mode and median of a distribution is 6:5, then the ratio of mean and median is:
A8:9
B9:10
C7:10
D1:2
✓ Correct Answer: B — 9:10
Mode = 6k, Median = 5k. $6k = 3(5k) - 2Mean \Rightarrow 2Mean = 9k \Rightarrow Mean = 4.5k$. Ratio Mean:Median = 4.5:5 = 9:10.
Share this question
More from Statistics
- The mode of 12, 11, 15, 12, 14, 11, 12, 10, 15 is:
- If the mean of 5 observations is 10, the sum of deviations from 10 is:
- If P(E) = 0.7, what is P(not E)?
- In a grouped frequency distribution, if the median class is 20-30, L=20, N=40, cf=15, f=10, h=10, the median is:
- The sum of the deviations of a set of values from their arithmetic mean is always: