Asked by Sarah

bob received a z score of 0.9 on a college entrance exam. If the raw scores have a mean of 540 and a standard deviation of 80 points,what is his raw score?
Answered by PsyDAG
Z = (score - mean)/ standard deviation

.9 = (score - 540)/80

Solve for score.
Answered by arun
i can learn statistics problems
Answered by jamie
The mean scores on the stats exam was 75 points with a standard deviation of 5 points and becks z score was -2. How many points did he score?
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