Suppose an exam had an average (mean) score of 70% and a standard deviation of 1
ID: 3058875 • Letter: S
Question
Suppose an exam had an average (mean) score of 70% and a standard deviation of 15%.
If the teacher curved grades using the bell curve as in the table above, what score would be necessary to receive an "A"? Round your answer a percentage to one decimal place.
To receive an "A" a score of ? would be needed.
How about a "B"? Round your answers as percentages to one decimal place. (Enter your answers from smallest to largest.)
To receive a "B" a score between % and % would be needed.
How about a "C"? Round your answers as percentages to one decimal place. (Enter your answers from smallest to largest.)
To receive a "C" a score between % and % would be needed.
A 1.5 standard deviations above the mean or higher B 0.5 to 1.5 standard deviations above the mean C within 0.5 standard deviation of the mean D 0.5 to 1.5 standard deviations below the mean F 1.5 standard deviations below the mean or lowerExplanation / Answer
Suppose an exam had an average (mean) score of 70% and a standard deviation of 15%.
If the teacher curved grades using the bell curve as in the table above, what score would be necessary to receive an "A"? Round your answer a percentage to one decimal place.
To receive an "A" a score of ? would be needed.
How about a "B"? Round your answers as percentages to one decimal place. (Enter your answers from smallest to largest.)
To receive a "B" a score between % and % would be needed.
How about a "C"? Round your answers as percentages to one decimal place. (Enter your answers from smallest to largest.)
To receive a "C" a score between % and % would be needed.
A 1.5 standard deviations above the mean or higher B 0.5 to 1.5 standard deviations above the mean C within 0.5 standard deviation of the mean D 0.5 to 1.5 standard deviations below the mean F 1.5 standard deviations below the mean or lower