Statisticsmedium · Past Paper
If two coins are tossed, find the probability of getting at most one tail.
A1/4
B1/2
C3/4
D1
✓ Correct Answer: C — 3/4
Outcomes: HH, HT, TH. All have 0 or 1 tail. P = 3/4.
Share this question
More from Statistics
- For a continuous distribution, the median is 30. The median class is 20-40, frequency of median class is 10, and cumulative frequency before it is 15. Find total frequency N.
- The mean of 20 observations is 15. On checking, it was found that two observations 20 and 15 were miscopied as 3 and 32. The correct mean is:
- Find the mode: 5, 8, 5, 12, 15, 8, 20, 8, 5, 8.
- If each value in a dataset is multiplied by 3, what happens to the mean?
- If $N=100$ and median position is given by $N/2$, what is the position?