The 6th grаde students in а schооl hаve standardized reading scоres that are normally distributed. The principal wants to randomly select 5 students each month to work with 1st grade students on their reading skills. What is the probability that a random sample of five 6th grade students will have one student with a reading ability that is at least one standard deviation below the mean (e.g., z ≤ -1.00)? [BLANK-1]