Data Questions(Listed in Description)
1.A team of 7 students is to be selected from a class of 30.
a. Aaron, Brad and Charles are students in this class. What is the probability that team includes these 3 students?
b. How many team would not include all three students?
*Would you use indirect reasoning for b?
2.The results for a university entrance exam are normally distributed with µ = 48 and σ = 9 . What is the probability that an exam chosen at random will have a score greater than 63, but less than 73? (Assume data is continuous)
3.By using binomial distribution and normal approximation to answer a question, do you get the same answer from both methods?