Obtaining a driver's license at the earliest eligible age has been a teenage ritual that appears to be fading. A study performed by a university's transportation research institute recently found that 32% of U. S. teenagers between the ages of 17 and 19 did not possess a driver's license. A random sample of 140 17-to-19-year-old
teenagers was selected. Complete parts a through d.
a. What is the probability that 45 or fewer teenagers of this sample had not obtained a driver's license?
The probability is
(Round to four decimal places as needed.)