Finite Mathematics Quiz
17 questions · no time limit
0:00
PROBABILITY AND STATISTICS
Question 1 of 17
No time limit
Current
Answered
Flagged
Not seen
A professor calculates that the mean score on an exam is 78.5 with a standard deviation of 12.3. After reviewing the exam, she decides to add 5 points to every student's score and then discovers she made an error in the original calculation - the actual standard deviation was 15.7, not 12.3. What is the mean of the adjusted scores?
YOUR PROGRESS
17
QUESTIONS
Ready when you are
Answer in any order. Your progress shows here as you go.
QUESTIONS
KEYBOARD
Pick an answer ABCD
Next question ↵→
Previous ←
Flag for review F
Answers save as you go · flagged questions come back at the end