Statisticseasy · Past Paper
The class mark (mid-value) of 10-20 is:
A10
B20
C15
D5
✓ Correct Answer: C — 15
Mid-value = (Lower limit + Upper limit) / 2 = (10+20)/2 = 15.
Share this question
More from Statistics
- If the mean of 4, 6, x, 9, 10, 15 is 10, find x.
- Two coins are tossed. What is the probability of getting at most 2 heads?
- In a data set, if the median is 15 and the mean is 15, what is the most likely value for the mode if the distribution is perfectly symmetrical?
- The experimental probability of an event is based on:
- A box contains 4 red, 5 black, and 6 white balls. One ball is drawn at random. What is the probability that the ball is not black?