If it is estimated that 30% of all students who fall under the Business Economics and management departmebt at Richfield have driver's license. What is the probability of this in a sample of 10 students?
1. Exactly 4 have a driver's license?
2. At least 2 have a valid driver's license?
3. More than 9 have a valid driver's license?
The probability that a student has a driver's license is . We will use a binomial distribution for this problem. Assume that a random variable denotes a number of people that have driver's license. We have to calculate the following probabilities:
3.
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