Research shows the average at-risk policyholder pays $939 in insurance per year. ABC Insurance Company insures more at-risk drivers than most other insurance companies. ABC Insurance has identified a total of 248 policyholders that are classified at-risk. The company takes a sample of 60 at-risk policyholders and determined the standard deviation of the 248 policyholders is $210. What is the probability that their at-risk policyholders pay between $1000 and $1025 per year?