18 Multiple choice A sample of n 9 has a mean of 22 One sco

18. Multiple choice: A sample of n = 9 has a mean of 22. One score is added to the sample. After the score is added, the new mean is 24. What was the value of the score that was added? (1 pt.) a. 33 b. 42 c. 17 d. Impossible to determine from information provided.

sum was 9*22 = 198 before addition and sum would be 240 after addition, thus the number added is240-198 = 42