Statisticseasy · Past Paper
The arithmetic mean of 10 numbers is 7. If each number is increased by 11, the new mean is:
A7
B11
C18
D77
✓ Correct Answer: C — 18
New mean = 7 + 11 = 18.
Share this question
More from Statistics
- Which of the following is NOT a measure of central tendency?
- Find the median of the following frequency distribution: (X: 10, 20, 30, 40) (f: 3, 5, 8, 4).
- A number is chosen from 1 to 20. What is the probability that it is a prime number?
- In a pie chart representing marks (Total = 600), Science marks are 120. What is the angle?
- Two dice are thrown. What is the probability that the sum is more than 10?