SAT scores have a mean of 1000 and a standard deviation of220.
Q18: What is the probability that a random student will scoremore than 1400?
Q19: Using the Central Limit Theorem, what is the probabilitythat sample of 100 students will have an average score less than990?
Q20: Using the Central Limit Theorem, what is the probabilitythat sample of 100 students will have an average score between 990and 1010?
Use excel functions to calculate your answers.
