Final answer:
The percentage of students scoring between 900 and 1150 on an exam would likely be approximately 68% if this range represents one standard deviation from the mean based on the empirical rule, but exact percentage cannot be determined without additional data.
Step-by-step explanation:
The percentage of students scoring between 900 and 1150 on an exam is a typical question that involves understanding the properties of normal distribution or other statistical data analysis methods.
This question appears to be referencing the empirical rule or standard deviation, which says that for a normal distribution, approximately 68% of observations fall within one standard deviation of the mean, 95% within two standard deviations, and 99.7% within three standard deviations.
Since the range from 900 to 1150 is not specified in terms of standard deviations from the mean, we can't accurately determine the percentage without further information. However, if we assume that 900 to 1150 encompasses one standard deviation on either side of the mean, then the answer would be closest to 68%, which is option B. Still, without additional details, this response is based on an assumption rather than exact data provided.