statistics
posted by Jimb on .
Alice has measured the hemoglobin levels of 200 people. If the data follows a normal distribution with a mean of 10 and a standard deviation of 1, what can you conclude?

Among several other possible conclusions, you can say that about 2/3 of the 200 will be between 9 and 11, and about 95% will be between 8 and 12.