So based on the Central Limit Theorem and rules the normal distribution, we know that approximately 95% of sample means will be within 2 (1.96 to be more exact) standard errors of the true population mean.
To apply for a Delaware driver's license, you must: Be at least 18 years old or have met the graduated driver's licensing (GDL) requirements. Have held your learner's permit for at least 10 days.
1 Must be at least 16 years old, and less than 18 years of age.  Must present a Delaware Driver Education Certificate (Blue Certificate) as proof that you passed a certified Delaware Driver Education Course.