Statisticsmedium · Past Paper
In a class of 40 students, 10 failed. What is the angle in a pie chart representing the number of passed students?
A90 degrees
B180 degrees
C270 degrees
D300 degrees
✓ Correct Answer: C — 270 degrees
Passed = 40 - 10 = 30. Angle = (30/40) * 360 = 3/4 * 360 = 270 degrees.
Share this question
More from Statistics
- The probability of hitting a target is 1/4. If 3 shots are fired, what is the probability of hitting it at least once?
- In a class of 30, 10 students like tea, 15 like coffee and 5 like both. What is the probability that a student chosen at random likes neither?
- If Σ(x - Mean) is calculated for any dataset, the result is:
- In a single throw of two dice, what is the probability of getting a doublet?
- Calculate the mean of the squares of the first three natural numbers.