question archive In a recent year, a sample of grade 8 Washington State public school students taking a mathematics assessment test had a mean score of 281 with a standard deviation of 34
In a recent year, a sample of grade 8 Washington State public school students taking a mathematics assessment test had a mean score of 281 with a standard deviation of 34
Subject:MathPrice: Bought3
In a recent year, a sample of grade 8 Washington State public school
students taking a mathematics assessment test had a mean score of 281 with a standard deviation of 34.4. Possible test scores could range from 0 to 500. Assume that the scores are normally distributed.
If 2000 students are randomly selected, how many would you expect to have a score between 250 and 305?
