The mean number of books read last year by a group of

Last updated: 8/14/2022

The mean number of books read last year by a group of students is normally distributed with a mean of 10 and a standard deviation of 6. If Austin is 0.5 standard deviations below the mean and Kaleigh is 2 standard deviations above the mean, how many more books did Kaleigh read than Austin?